Skip to content
2x2 Matrix Determinant CalculatorCalculate the determinant of a 2×2 matrix from its four entries.2x2 Matrix Multiplication CalculatorMultiply two 2×2 matrices together to find the resulting 2×2 matrix.3D Distance CalculatorCalculate the straight-line distance between two points in 3D space.3D Vector Dot Product CalculatorCalculate the dot product of two 3D vectors from their x, y and z components.50/30/20 Budget CalculatorSplit your monthly after-tax income into recommended spending categories using the well-known 50/30/20 budgeting rule.50/30/20 Household Budget CalculatorSplits your monthly income into needs, wants and savings using the popular 50/30/20 budgeting guideline.Absolute Value CalculatorCalculate the absolute value of a number — its magnitude, ignoring sign.Accounts Receivable Days Calculator (DSO)Calculate Days Sales Outstanding (DSO) — how long it takes to collect payment after a sale.Acres to Square Feet ConverterConvert acres to square feet instantly using a precise conversion factor.Add Days to a Date CalculatorAdd a number of days to a date to find what date it lands on.Add Months to a Date Calculator (Approximate)Estimate the date that results from adding a number of months to a start date, using the average month length.Add or Subtract Time CalculatorCalculate a new clock time by adding or subtracting a number of hours and minutes from a starting time.Age Calculator (By Birth Year)Estimate your age in years from your birth year and the current year.Age in Days, Hours, and Minutes CalculatorCalculate your exact age from your birth date, expressed in total days, hours, and minutes lived.Angle Converter CalculatorConverts an angle from degrees into radians and gradians.Anniversary Countdown CalculatorCalculates how many days and years have passed since a meaningful date, such as a wedding or founding anniversary.Annualized Return CalculatorConvert a total return over multiple years into an equivalent constant annual growth rate.Annuity Payout (Retirement Withdrawal) CalculatorCalculate the fixed monthly payout a lump sum can sustain over a set number of years, assuming a given rate of return.Annulus (Ring) Area CalculatorCalculate the area of an annulus (ring shape) — the area between two concentric circles.APY Calculator (Annual Percentage Yield)Calculate the Annual Percentage Yield (APY) — the real effective annual return once compounding is taken into account.Area Converter CalculatorConverts an area between square meters, square centimeters, square kilometers, hectares, square feet and acres all at once.Arithmetic Sequence CalculatorFinds the nth term and the sum of the first n terms of an arithmetic sequence.Australia Capital Gains Tax CalculatorEstimate CGT on an asset, including the 50% discount for assets held over 12 months.Australia GST CalculatorAdd or remove Australia’s 10% GST from an amount.Australia HECS-HELP Repayment CalculatorEstimate your compulsory HECS-HELP / HELP loan repayment for the year.Australia Income Tax CalculatorEstimate your Australian resident income tax and Medicare levy.Australia Land Tax Calculator (NSW)Estimate NSW Land Tax on investment or non-exempt land holdings.Australia Medicare Levy CalculatorEstimate your Medicare Levy and any Medicare Levy Surcharge liability.Australia Stamp Duty Calculator (NSW)Estimate NSW transfer (stamp) duty on a residential property purchase.Australia Superannuation Guarantee CalculatorEstimate your employer’s compulsory superannuation contribution.Auto Loan Affordability CalculatorWork backwards from a monthly payment budget to find the maximum loan amount and vehicle price you can afford.Average Calculator (5 Numbers)Calculate the average (arithmetic mean) of up to five numbers.Average Speed for a Round Trip CalculatorCalculate the correct average speed for a round trip where you travel the same distance at two different speeds each way.Average Speed from Distance and Time CalculatorCalculates average speed from a distance traveled and the time taken, shown in multiple common speed units.Back-End DTI CalculatorCalculate the back-end DTI ratio — the share of gross income going toward all debts, including housing.Bar to PSI ConverterConvert bar to psi instantly using a precise conversion factor.Baseball ERA Calculator (Earned Run Average)Calculate a pitcher’s Earned Run Average (ERA).Basketball Shooting Percentage CalculatorCalculates field goal shooting percentage from shots made and shots attempted.Batting Average CalculatorCalculate a batting average from hits and at-bats.Bill Split CalculatorSplit a restaurant or group bill evenly, including tip.Blood Alcohol Content (BAC) EstimatorEstimate blood alcohol content using the Widmark formula.Blood Pressure Category CalculatorClassifies a blood pressure reading into a general category based on commonly published systolic/diastolic thresholds.BMI CalculatorCalculate your Body Mass Index (BMI) from height and weight and see your weight category.BMR Calculator (Basal Metabolic Rate)Calculate your Basal Metabolic Rate (BMR) — the calories your body burns at rest — using the Mifflin-St Jeor equation.Board Feet CalculatorCalculate board feet — the standard unit for pricing hardwood lumber — from board dimensions and quantity.Body Adiposity Index (BAI) CalculatorEstimate body fat percentage using the Body Adiposity Index formula, without needing a scale.Body Fat Percentage CalculatorEstimate your body fat percentage from BMI, age and sex using the Deurenberg formula.Bond Current Yield CalculatorCalculate a bond's current yield — its annual coupon income as a percentage of its current market price.Bowling Score Average CalculatorCalculates your average bowling score across a series of games.Break-Even Units CalculatorCalculates the number of units you need to sell to cover fixed costs, based on price and variable cost per unit.Brick and Mortar Estimator CalculatorEstimates the number of bricks and bags of mortar needed for a wall based on its area.Business Days Between Dates Calculator (Estimate)Estimate the number of business days (Monday to Friday) between two dates using a 5/7 weekday ratio.Business Loan Affordability (DSCR) CalculatorCalculates the Debt Service Coverage Ratio (DSCR) to gauge whether a business can comfortably afford a proposed loan payment.Business Valuation by Earnings Multiple CalculatorEstimates a rough business valuation by applying an industry earnings multiple to annual net earnings.Byte Storage Converter CalculatorConverts a value in bytes into kilobytes, megabytes, gigabytes and terabytes using binary (1024-based) units.CAGR Calculator (Compound Annual Growth Rate)Calculate the compound annual growth rate between a starting and ending value.Calorie Deficit for Weight Loss CalculatorCalculates the daily calorie deficit and target daily calories needed to reach a chosen weekly weight loss goal.Calories Burned by MET Value CalculatorEstimates calories burned during an activity using its MET (metabolic equivalent) value, your body weight and duration.Canada Capital Gains Tax CalculatorEstimate the tax owed on a capital gain using Canada’s 50% inclusion rate.Canada CPP Contribution CalculatorEstimate your annual Canada Pension Plan (CPP) contribution.Canada EI Contribution CalculatorEstimate your annual Employment Insurance (EI) premium and your employer’s matching share.Canada Federal Income Tax CalculatorEstimate your Canadian federal income tax using current federal brackets.Canada GST/HST CalculatorAdd or remove GST/HST from an amount for any Canadian province or territory.Canada Land Transfer Tax Calculator (Ontario)Estimate Ontario Land Transfer Tax, including the Toronto Municipal Land Transfer Tax and first-time buyer rebate.Canada RRSP Contribution Room CalculatorEstimate your annual RRSP contribution room based on your earned income.Canada TFSA Contribution Room CalculatorTrack your cumulative Tax-Free Savings Account (TFSA) contribution room.CAPM Expected Return CalculatorCalculate a stock's expected return using the Capital Asset Pricing Model (CAPM).Car Depreciation CalculatorEstimate your car’s resale value after a number of years using a declining-balance depreciation rate.Car Fuel Fill-Up Cost CalculatorCalculates how many liters you need and what it will cost to fill your tank from its current fuel level.Car Insurance Premium Estimator (Simplified)Get a simplified, illustrative estimate of an annual car insurance premium based on a base rate adjusted for age, driving record and vehicle value.Car Lease Payment CalculatorEstimate a car lease's monthly payment from the negotiated price, residual value, lease term and money factor.Car Loan CalculatorEstimate your monthly car payment, total interest and amount financed for an auto loan.Car Total Cost of Ownership (5-Year) CalculatorEstimate the full 5-year cost of owning a car, combining loan payments, fuel, insurance and maintenance, minus its estimated resale value.CD Maturity Calculator (Certificate of Deposit)Calculate the maturity value and interest earned on a Certificate of Deposit.Ceiling CalculatorCalculate the ceiling of a number — the smallest whole number greater than or equal to it.Celsius to Fahrenheit CalculatorConvert a temperature from Celsius to Fahrenheit using the standard formula.Celsius to Kelvin CalculatorConvert a temperature from Celsius to Kelvin by adding the offset between the two scales.Cement Bags CalculatorEstimate the number of cement bags needed for a concrete pour, based on your volume and mix ratio (e.g. 1:2:4).Centimeters to Inches ConverterConvert centimeters to inches instantly using a precise conversion factor.Centripetal Force CalculatorCalculate the centripetal force needed to keep an object moving in a circular path.Circle Area and Circumference CalculatorCalculate the area, circumference and diameter of a circle from its radius.Class Attendance Percentage CalculatorCalculate your class attendance percentage from classes attended and classes held so far.Class Rank Percentile CalculatorConverts a class rank into a percentile showing what share of the class you outrank.Clothing Size Converter (US, UK, EU)Convert women’s clothing sizes between US, UK and EU sizing systems.Coefficient of Variation CalculatorCalculate the coefficient of variation (CV) — a standardized measure of relative variability, expressed as a percentage of the mean.College Savings (529 Plan) Growth CalculatorProject the future value of a college savings account from current savings, monthly contributions and an assumed annual return.Commute Fuel Cost CalculatorCalculates your monthly fuel cost for commuting based on distance, fuel price, vehicle efficiency and workdays.Commute Time Cost CalculatorEstimate the dollar value of time spent commuting, based on your hourly wage.Compound Interest Future Value CalculatorProjects the future value of a lump-sum investment given a rate, term and compounding frequency.Compound Percentage Change CalculatorApplies two sequential percentage changes to a starting value and reports the combined effect.Concrete Footing CalculatorEstimate the concrete volume needed for footings.Concrete Slab Volume and Bags CalculatorCalculates the concrete volume needed for a slab and how many bags of pre-mixed concrete that requires.Confidence Interval Calculator (for a Mean)Calculate a confidence interval around a sample mean at a chosen confidence level.Contribution Margin CalculatorCalculate contribution margin per unit and as a ratio — the amount each sale contributes toward covering fixed costs and profit.Cooking Volume Converter CalculatorConverts a recipe measurement between teaspoons, tablespoons, cups and milliliters — built for kitchen use.Cost Per Mile to Drive CalculatorCalculate the total cost per mile to drive your vehicle, combining fuel cost and estimated maintenance cost.Countdown to Date CalculatorCalculates how many days and weeks remain until a future target date.Credit Card Minimum Payment CalculatorEstimates your card's minimum payment, the interest portion, and how much actually reduces your balance.Credit Utilization Ratio CalculatorCalculate your credit utilization ratio across one or more credit cards.Cube and Square Root CalculatorCalculates the square, square root, cube and cube root of a number in one step.Cube Volume and Surface Area CalculatorCalculate the volume, total surface area and space (interior) diagonal of a cube from its side length.Cumulative GPA CalculatorCalculate your new cumulative GPA by combining your prior GPA with a new semester’s GPA and credit hours.Currency Converter CalculatorConverts an amount from your chosen input currency and lets you view it in any supported display currency.Current Ratio CalculatorCalculate the current ratio — a key measure of a company's short-term liquidity and ability to pay its near-term obligations.Customer Acquisition Cost (CAC) CalculatorCalculate your customer acquisition cost (CAC) from total sales and marketing spend and new customers gained.Customer Churn Rate CalculatorCalculates the percentage of customers lost over a period and the corresponding retention rate.Cycling Power-to-Weight Ratio CalculatorCalculate your cycling power-to-weight ratio in watts per kilogram.Cylinder Surface Area CalculatorCalculate the total surface area of a cylinder from its radius and height.Daily Habit Cost CalculatorSee how much a small daily expense — like coffee or takeout — adds up to over a month and a year.Data Transfer Speed ConverterConvert between internet and data transfer speed units like Mbps, MBps and Gbps.Date Difference CalculatorCalculates the number of days, weeks and approximate years between two dates.Day of the Week Finder CalculatorFinds what day of the week any date falls on, past or future.Day of Year CalculatorFind which day number (1–365 or 366) a given date falls on within its year.Debt-to-Equity CalculatorCalculate the debt-to-equity ratio — a key measure of how much a company relies on debt versus equity to finance its assets.Debt-to-Income Ratio CalculatorCalculate your debt-to-income (DTI) ratio from your monthly debt payments and gross income.Deck Board CalculatorEstimate the number of deck boards and total linear footage needed for a deck.Decking Board CalculatorCalculate the number of decking boards needed to cover a deck area, including a waste allowance.Density CalculatorCalculates the density of an object or substance from its mass and volume.Discount CalculatorCalculate the discount amount and final sale price after a percentage-off discount.Distance Between Two Points CalculatorCalculates the straight-line distance between two points on a coordinate plane.Distance, Speed and Time CalculatorSolve for speed, time or distance using the classic Distance = Speed × Time relationship — enter any two values to find the third.Dividend Payout Ratio CalculatorCalculate the dividend payout ratio — the share of a company's profit paid out to shareholders as dividends.Dividend Yield CalculatorCalculate a stock's dividend yield — the annual dividend income expressed as a percentage of the current share price.Down Payment Savings CalculatorCalculates the down payment amount and resulting loan amount for a home purchase at a given down payment percentage.Drywall Sheets CalculatorEstimate the number of drywall sheets needed for a room.Effective Annual Rate (EAR) CalculatorConvert a nominal annual interest rate (APR) into its effective annual rate (APY) based on compounding frequency.Ellipse Area CalculatorCalculate the area of an ellipse from its semi-major and semi-minor axis lengths.Ellipse Perimeter Calculator (Ramanujan Approximation)Estimate an ellipse's perimeter using Ramanujan's highly accurate approximation formula (there is no exact elementary formula for an ellipse's perimeter).Emergency Fund CalculatorCalculate how much to save for an emergency fund based on your monthly expenses.Employee Fully-Loaded Cost per Hour CalculatorCalculates the true hourly cost of an employee, including benefits, based on their annual salary and working hours.Employee Overtime Pay CalculatorCalculates regular pay, overtime pay and total pay for a pay period based on hourly rate and hours worked.Employee Retention Rate CalculatorCalculate your employee retention rate from headcount at the start of a period and employees who left.Employee Utilization Rate CalculatorCalculate the percentage of an employee’s available time spent on billable work.Employer 401(k) Match CalculatorCalculate your employer's matching retirement contribution and your combined total annual contribution.Energy Converter CalculatorConverts an energy value between kilowatt-hours, joules, calories and BTU all at once.Engine Displacement CalculatorCalculate an engine's total displacement in cubic centimeters and liters from its bore, stroke and cylinder count.EPS Calculator (Earnings Per Share)Calculate Earnings Per Share (EPS) — how much profit a company earns for each share of common stock.Escape Velocity CalculatorCalculate the escape velocity needed to break free of a celestial body’s gravity from its mass and radius.EV Charging Cost CalculatorEstimate the cost to charge an electric vehicle, accounting for charging losses (charger and battery efficiency).EV vs Gas Cost Per Mile CalculatorCompare the cost per mile of driving an electric vehicle versus a gasoline vehicle, based on local energy prices and efficiency.Excavation Volume and Truck Loads CalculatorCalculates the volume of soil to be excavated and how many truck loads it will take to haul away.Exponent (Power) CalculatorCalculate the result of raising a base number to an exponent, including fractional and negative exponents.Exponential Growth and Decay CalculatorModel exponential growth or decay: project how a starting value changes over a number of periods at a fixed percentage rate per period.Fahrenheit to Celsius CalculatorConvert a temperature from Fahrenheit to Celsius using the standard formula.Fantasy Football Points CalculatorCalculates fantasy football points from passing, rushing and receiving yards, touchdowns and interceptions using a common standard scoring format.Feet to Meters ConverterConvert feet to meters instantly using a precise conversion factor.Fence Material Estimator CalculatorEstimates the number of fence posts and total rail length needed based on perimeter, post spacing and rail rows.Fence Post CalculatorCalculate the number of fence posts needed based on total fence length and post spacing.File Download Time CalculatorEstimate how long a file will take to download based on its size and your connection speed.Final Exam Score Needed CalculatorCalculates the score you need on your final exam to reach a target overall grade, given your current grade and the exam's weight.FIRE Number CalculatorCalculate your FIRE number — the portfolio size needed to sustainably cover your living expenses using a chosen safe withdrawal rate.Flashcard Study Time CalculatorEstimate how long it will take to review a set of flashcards.Floor CalculatorCalculate the floor of a number — the largest whole number less than or equal to it.Flooring Material Cost CalculatorCalculates the total material cost of flooring a room based on its area and the cost per square meter.Fraction Addition and Subtraction CalculatorAdd or subtract two fractions and see the result as an unreduced fraction and a decimal.Fraction Multiplication and Division CalculatorMultiply or divide two fractions and see the result as an unreduced fraction and a decimal.Fraction to Decimal CalculatorConvert a fraction into its decimal equivalent by dividing the numerator by the denominator.Fraction to Percentage CalculatorConvert a fraction into a percentage and decimal value.Free Fall Time and Velocity CalculatorCalculates the time it takes an object to fall a given height and its velocity at impact, ignoring air resistance.Freelancer Hourly Rate CalculatorCalculate the hourly rate you need to charge to hit your income goal after expenses and non-billable time.Front-End DTI CalculatorCalculate the front-end DTI ratio — the share of gross income going toward housing costs alone.Fuel Cost for a Trip CalculatorEstimate how much fuel a trip will use and what it will cost, based on distance, fuel efficiency and fuel price.Fuel Economy (MPG) CalculatorCalculate your vehicle's real-world fuel economy in miles per gallon using the fill-up method.Fuel Economy Converter CalculatorConverts fuel economy from miles per US gallon into liters consumed per 100 kilometers.Fuel Economy Unit Converter (MPG, L/100km, km/L)Convert fuel economy figures between MPG (US), liters per 100km and kilometers per liter — units that are not simply proportional to each other.Fuel Tank Range CalculatorEstimate your remaining driving range based on tank size, fuel economy and current fuel level.Future Value of Annuity CalculatorCalculate the future value of a series of regular monthly contributions, growing at a fixed annual rate of return.Gallons to Liters ConverterConvert gallons (us) to liters instantly using a precise conversion factor.Geometric Sequence CalculatorFinds the nth term and the sum of the first n terms of a geometric sequence.Germany Church Tax Calculator (Kirchensteuer)Estimate the church tax added on top of your German income tax.Germany Elterngeld (Parental Allowance) CalculatorEstimate your monthly Elterngeld (parental allowance) payment.Germany Income Tax Calculator (Einkommensteuer)Estimate your German income tax (Einkommensteuer) for a single taxpayer.Germany Kindergeld Calculator (Child Benefit)Estimate your monthly and annual Kindergeld (child benefit) payment.Germany Net Salary Calculator (Brutto-Netto)Estimate your German net salary from gross salary, including tax and social insurance.Germany Real Estate Transfer Tax Calculator (Grunderwerbsteuer)Estimate the Grunderwerbsteuer (real estate transfer tax) due on a German property purchase.Germany Unemployment Benefit Calculator (Arbeitslosengeld I)Estimate your Arbeitslosengeld I (ALG I) unemployment benefit.Germany VAT Calculator (Mehrwertsteuer)Add or remove German VAT (Mehrwertsteuer) from an amount.Gift Exchange Budget CalculatorCalculates the total amount a group will spend on a gift exchange based on the number of participants and budget per person.Golf Handicap Differential CalculatorCalculates a single round's handicap differential from your adjusted gross score, the course rating and the slope rating.Golf Score to Par CalculatorCalculate how many strokes over or under par a golf round was.GPA Needed for Target Cumulative GPA CalculatorCalculate the GPA you need this semester to reach a target cumulative GPA.Grams to Ounces ConverterConvert grams to ounces instantly using a precise conversion factor.Gravel Driveway Volume and Weight CalculatorCalculates the volume and weight of gravel needed for a driveway based on its dimensions and gravel density.Gravitational Potential Energy CalculatorCalculates the gravitational potential energy of an object at a given height above a reference point.Grocery Budget Per Person CalculatorEstimate a monthly grocery budget based on household size and spending level.Gross Margin CalculatorCalculate gross profit and gross margin percentage from revenue and cost of goods sold.Group Expense Splitter (Uneven Shares) CalculatorSplit a bill unevenly based on each person's share — useful when people didn't order or use the same amount, unlike a straight even split.Gutter Length CalculatorEstimate the total linear feet of gutter and number of downspouts needed for a home.Half-Life Decay CalculatorCalculate the remaining quantity of a substance after a given time, based on its half-life.HbA1c to Average Glucose CalculatorConvert an HbA1c percentage to an estimated average blood glucose level.Heart Rate Zone CalculatorCalculate your target heart rate zones for moderate and vigorous exercise using the Karvonen method.Hemisphere Volume and Surface Area CalculatorCalculate the volume, curved surface area and total surface area of a hemisphere.Heron's Formula Triangle Area CalculatorCalculate a triangle's area from its three side lengths using Heron's Formula, with an automatic check that the three sides can actually form a valid triangle.Home Affordability CalculatorEstimate the maximum home price you can afford based on your income, debts, down payment and a target debt-to-income ratio.Home Electricity Usage Cost CalculatorCalculate the daily, monthly and annual running cost of an appliance from its wattage, usage hours and your electricity rate.Home Insurance Coverage EstimatorEstimate the dwelling coverage amount you may need based on your home’s size and rebuild cost per square foot.Home Loan / Mortgage CalculatorEstimate your monthly home loan or mortgage payment including principal, interest, property tax and insurance — for any country and currency.Home Water Usage Cost CalculatorEstimate your daily, monthly and annual water bill from your daily usage and price per 1,000 gallons.Horsepower and Torque CalculatorCalculate horsepower from an engine's torque output and RPM using the standard automotive formula.Hourly to Annual Salary CalculatorConvert an hourly wage into weekly, monthly and annual salary based on your hours and weeks worked.Hydration Needs by Weight CalculatorEstimates a general daily water intake target based on your body weight.Ideal Body Weight CalculatorEstimate ideal body weight from height and sex using the Devine formula.Ideal Gas Law Calculator (PV = nRT)Solve for pressure, volume, moles, or temperature using the ideal gas law.Inches to Centimeters ConverterConvert inches to centimeters instantly using a precise conversion factor.India Capital Gains Tax Calculator (Equity & Mutual Funds)Estimate LTCG and STCG tax on listed equity shares and equity mutual funds.India EPF CalculatorProject your Employees' Provident Fund (EPF) corpus at retirement.India Gratuity CalculatorEstimate your gratuity payout under the Payment of Gratuity Act, 1972.India GST CalculatorAdd or remove GST from an amount using current GST slab rates.India HRA Exemption CalculatorCalculate your House Rent Allowance (HRA) tax exemption under Section 10(13A).India Income Tax Calculator (New Regime)Estimate your income tax liability under the new tax regime for individuals.India Income Tax Calculator (Old Regime)Estimate your Indian income tax liability under the Old Tax Regime, with Section 80C and other deductions.India NPS Calculator (National Pension System)Project your NPS retirement corpus and estimated lump-sum/annuity split.India PPF Calculator (Public Provident Fund)Project the maturity value of your Public Provident Fund (PPF) account.India Salary Calculator (CTC to In-Hand)Break down your Cost to Company (CTC) into gross salary and estimated monthly take-home pay.India SIP CalculatorEstimate the maturity value of a monthly SIP (Systematic Investment Plan) in mutual funds.Inflation-Adjusted Value CalculatorCalculate what an amount of money from one year is worth in another year’s dollars.Insulation Material CalculatorCalculate how many bags of insulation you need for an area and the total material cost.Interest Coverage Ratio CalculatorCalculate the interest coverage ratio — how easily a company can pay interest on its outstanding debt from operating earnings.Inventory Reorder Point CalculatorCalculates the inventory level at which you should reorder stock, based on daily usage, lead time and a safety stock buffer.Inventory Turnover Ratio CalculatorCalculate how many times inventory is sold and replaced over a period.Kilograms to Pounds ConverterConvert kilograms to pounds instantly using a precise conversion factor.Kilometers to Miles ConverterConvert kilometers to miles instantly using a precise conversion factor.Kinetic Energy CalculatorCalculates the kinetic energy of a moving object from its mass and velocity.Laundry Cost Estimator CalculatorCalculates weekly and annual laundry costs based on loads per week and cost per load.Lean Body Mass CalculatorEstimate lean body mass and fat mass from weight, height and sex using the Boer formula.Leap Year Checker CalculatorCheck whether a given year is a leap year using the standard Gregorian calendar rule.Lease vs. Buy Car CalculatorCompare the total cost of leasing a car versus financing a purchase over a set term.Length Converter CalculatorConverts a length between millimeters, centimeters, meters, kilometers, inches, feet, yards and miles all at once.Linear Equation Solver (ax + b = c)Solve a simple linear equation of the form ax + b = c for the value of x.Liters to Gallons ConverterConvert liters to gallons (us) instantly using a precise conversion factor.Loan Amortization CalculatorSee how much of a specific loan payment goes to interest versus principal.Loan Comparison Calculator (Two Offers)Compare two loan offers with different interest rates and terms to see which one costs less overall and which has the lower monthly payment.Loan EMI CalculatorEstimate your monthly EMI, total interest and total payment.Loan Refinance Break-Even CalculatorCalculate how many months it takes to recoup refinance closing costs from lower monthly payments.Loan-to-Value (LTV) CalculatorCalculate the Loan-to-Value (LTV) ratio — a key figure lenders use to assess mortgage risk.Macronutrient (Macro) Split CalculatorCalculate daily protein, carbohydrate and fat targets in grams from your calorie goal and macro percentages.Margin of Error CalculatorCalculate the margin of error for a sample mean at a chosen confidence level.Mean Calculator (Choose 2 to 10 Numbers)Calculate the mean (average) of anywhere from 2 to 10 numbers by first choosing how many values you want to enter.Median of Three Numbers CalculatorFinds the middle value (median) of three numbers without needing to sort them by hand.Meters to Feet ConverterConvert meters to feet instantly using a precise conversion factor.Midpoint CalculatorFind the midpoint (the point exactly halfway) between two coordinates on a 2D plane.Miles to Kilometers ConverterConvert miles to kilometers instantly using a precise conversion factor.Minutes to Hours and Minutes CalculatorConverts a total number of minutes into a whole-hours-and-minutes format.Mixed Number to Improper Fraction CalculatorConvert a mixed number like 2 3/4 into an improper fraction and its decimal equivalent.Mode Calculator (5 Numbers)Calculate the mode (most frequently occurring value) among 5 numbers.Modulo CalculatorCalculate the modulo (remainder after division) of two numbers.Molar Mass to Moles CalculatorCalculates the number of moles of a substance from its mass and molar mass.Molarity Dilution CalculatorCalculate the resulting concentration after diluting a solution to a new volume, using C1V1 = C2V2.Momentum and Impulse CalculatorCalculate momentum, impulse, and the resulting change in velocity from a force applied over time.Months Between Dates Calculator (Approximate)Estimate the number of months between two dates using the average month length (30.44 days).Mortgage Refinance Savings CalculatorCalculate the estimated monthly payment savings from refinancing a mortgage to a new rate and term, and how long it takes to recoup the closing costs.Moving Truck Size Estimator CalculatorGives a very rough estimate of moving truck volume needed based on the number of rooms being moved.MPH to KPH ConverterConvert miles per hour (mph) to kilometers per hour (kph) instantly using a precise conversion factor.Mulch CalculatorCalculate how many cubic yards (or 2-cubic-foot bags) of mulch you need to cover an area at a given depth.Net Margin CalculatorCalculate net margin — the percentage of revenue that remains as profit after all expenses.Net Present Value (NPV) CalculatorCalculate the Net Present Value (NPV) of an investment with up to 5 years of projected cash flows.Net Worth CalculatorCalculates your net worth from total assets minus total liabilities and shows whether it's positive or negative.Newton's Second Law Force CalculatorCalculates the net force required to produce a given acceleration on a mass, using F = ma.Nigeria Capital Gains Tax Calculator (2025 Tax Act)Estimate capital gains tax for individuals under Nigeria’s Tax Act 2025, which now taxes gains via the personal income tax bands.Nigeria Companies Income Tax (CIT) CalculatorEstimate companies income tax, including the small-company exemption for low-turnover businesses.Nigeria National Housing Fund (NHF) CalculatorEstimate your National Housing Fund contribution in Nigeria.Nigeria PAYE Income Tax CalculatorEstimate your Nigeria PAYE income tax under the Nigeria Tax Act 2025.Nigeria Pension Contribution CalculatorEstimate your Nigeria Contributory Pension Scheme contribution.Nigeria Stamp Duty Calculator (Tenancy/Lease Agreements)Estimate stamp duty payable on a Nigerian tenancy or lease agreement.Nigeria VAT CalculatorAdd or remove Nigeria VAT from an amount.Nigeria Withholding Tax (WHT) CalculatorEstimate withholding tax due on a payment, by transaction type.Nominal Interest Rate Calculator (from APY)Work backwards from an APY to find the underlying nominal (stated) annual interest rate.Ohm's Law CalculatorCalculate current and power from voltage and resistance using Ohm's Law.One-Rep Max (1RM) CalculatorEstimate your one-rep max (1RM) for a lift from the weight and reps you completed, using the Epley formula.Operating Margin CalculatorCalculate operating margin — the percentage of revenue remaining after operating expenses, before interest and taxes.Ounces to Grams ConverterConvert ounces to grams instantly using a precise conversion factor.Overtime Pay CalculatorCalculate total pay including overtime, using a standard overtime multiplier such as time-and-a-half or double time.Ovulation Window CalculatorEstimates your likely ovulation day and fertile window from the start of your last period and average cycle length.P/E Ratio CalculatorCalculate the Price-to-Earnings (P/E) ratio, a widely used valuation metric comparing a stock's price to its earnings.Paint Quantity CalculatorCalculates how many liters of paint you need for a wall area given the number of coats and paint coverage.Pakistan EOBI Contribution CalculatorEstimate monthly EOBI (Employees’ Old-Age Benefits) contributions.Pakistan Gratuity CalculatorEstimate your end-of-service gratuity under Pakistani labour law.Pakistan Income Tax Calculator (Non-Salaried / Business Individuals)Estimate income tax for a non-salaried individual (business or professional income), using the separate non-salaried slabs.Pakistan Income Tax Calculator (Salaried)Estimate your Pakistan income tax for salaried individuals.Pakistan Overtime Pay CalculatorEstimate your overtime pay under Pakistani labour law.Pakistan Sales Tax (GST) CalculatorAdd or remove Pakistan sales tax from an amount.Pakistan Sales Tax on Services CalculatorEstimate provincial sales tax on services across Pakistan’s provinces.Pakistan Zakat CalculatorEstimate annual Zakat due on savings and other Zakatable assets above the Nisab threshold.Parallelogram Area and Perimeter CalculatorCalculate the area and perimeter of a parallelogram from its base, height and side length.Party Food Quantity Estimator CalculatorEstimates the total number of food servings needed for a party based on guest count and servings per guest.Pass Completion Rate CalculatorCalculate a passing completion percentage in football, soccer, or basketball.Paver Patio CalculatorEstimate the number of pavers needed for a patio.Pay Frequency ConverterConvert a pay amount between weekly, bi-weekly, semi-monthly, monthly and annual pay frequencies.Payback Period CalculatorCalculate how long it takes for an investment to pay for itself from its annual cash flow.PEG Ratio CalculatorCalculate the PEG ratio — a stock's P/E ratio adjusted for its expected earnings growth rate.Per Capita CalculatorCalculate a per-capita figure by dividing a total value (like GDP, spending, or emissions) by a population count.Percentage Change CalculatorCalculate the percentage increase or decrease between two values.Percentage Difference CalculatorCalculate the percentage difference between two numbers, using their average as the base (unlike percentage change, which uses the original value as the base).Percentage Error CalculatorCalculate the percentage error between a measured or experimental value and the true or accepted value — commonly used in science and lab experiments.Percentage of a Number CalculatorFinds what a given percentage of a number equals.Percentage Point Difference CalculatorCalculate the difference between two percentages in percentage points, and separately the relative percentage change — two figures that are often confused.Percentage to Letter Grade and GPA Point CalculatorConverts a percentage score into a common letter grade and a standard 4.0-scale GPA point value.Personal Loan Payment CalculatorCalculates the fixed monthly payment, total repaid and total interest on a personal loan.Pet Adoption First-Year Cost CalculatorEstimate the total first-year cost of adopting a new pet.Pet Food Daily Cost CalculatorCalculates the daily and monthly cost of feeding your pet based on its weight, feeding guideline percentage and food cost.Philippines 13th Month Pay CalculatorEstimate your statutory 13th month pay in the Philippines.Philippines Estate Tax CalculatorEstimate the 6% flat estate tax due on a deceased person’s net estate.Philippines Income Tax Calculator (TRAIN Law)Estimate your Philippines individual income tax under the TRAIN law.Philippines Pag-IBIG Contribution CalculatorEstimate your monthly Pag-IBIG Fund (HDMF) contribution.Philippines PhilHealth Contribution CalculatorEstimate your monthly PhilHealth premium split between employee and employer.Philippines Retirement Pay Calculator (RA 7641)Estimate the statutory minimum retirement pay for a retiring private-sector employee.Philippines SSS Contribution CalculatorEstimate your monthly SSS contribution in the Philippines.Philippines VAT CalculatorAdd or remove Philippines VAT from an amount.Pounds to Kilograms ConverterConvert pounds to kilograms instantly using a precise conversion factor.Power Unit Converter (Watts, kW, HP)Convert power values between watts, kilowatts and horsepower.Precise Age CalculatorCalculates your exact age in both total days and completed years from a birth date.Pregnancy Due Date CalculatorEstimates your baby's due date and current weeks pregnant from the first day of your last menstrual period.Pregnancy Weight Gain CalculatorEstimate a healthy pregnancy weight gain range based on your pre-pregnancy BMI.Present Value CalculatorCalculate the present value of a single future lump sum, discounted at a given annual rate.Pressure Converter CalculatorConverts a pressure between PSI, bar, kilopascals and atmospheres all at once.Price Elasticity of Demand CalculatorCalculate how sensitive demand is to a change in price.Price Per Unit CalculatorCalculate the price per unit (per ounce, per item, per kg, etc.) to compare value between different package sizes.Price-to-Book Ratio CalculatorCalculate the Price-to-Book (P/B) ratio, comparing a stock's market price to its accounting book value.Profit Margin and Markup CalculatorCalculates profit, profit margin and markup percentage from a product's cost and selling price.Project Deadline CalculatorCalculates a project's deadline date and duration in weeks from a start date and number of working days.Proportion CalculatorSolve a proportion of the form A/B = C/D for the missing value, given the other three.Protein Intake CalculatorEstimates daily protein intake target based on body weight and activity level.PSI to Bar ConverterConvert psi to bar instantly using a precise conversion factor.PSI to kPa ConverterConvert psi to kilopascals (kpa) instantly using a precise conversion factor.Pyramid Volume CalculatorCalculate the volume of a pyramid (of any base shape) from its base area and height.Quadratic Formula CalculatorSolves ax² + bx + c = 0 for its real roots, discriminant and root type.Quadratic Vertex Form CalculatorFind the vertex, axis of symmetry, and direction of opening of a quadratic function.Quarter Calculator (Which Quarter a Date Falls In)Find which calendar quarter (Q1–Q4) a given month falls in.R-Value Insulation Calculator (Total from Layers)Calculate the total R-value of a wall, roof or floor assembly by adding up the R-values of each insulation layer.Race Finish Time Predictor CalculatorPredicts your finish time for a target race distance based on a recent race or time trial result, using Riegel's endurance formula.Reading Speed and Time CalculatorCalculates how long it will take to read a document based on its word count and your reading speed.Rebar Calculator (Grid Pattern)Estimate the number and total length of rebar needed for a two-way grid pattern in a concrete slab.Recommended Daily Fiber Intake CalculatorEstimates a general daily dietary fiber target based on commonly published age and sex guidelines.Rectangle Perimeter and Area CalculatorCalculate the area and perimeter of a rectangle from its length and width.Rectangular Prism Diagonal CalculatorCalculate the space diagonal (corner-to-corner distance) of a rectangular box.Rent Affordability CalculatorCalculate how much rent you can afford based on your income and a target rent-to-income percentage.Rent vs Buy CalculatorCompare the total cost of renting versus buying a home over a specific number of years, accounting for mortgage payments, taxes, maintenance and home appreciation.Retirement Savings Projection CalculatorProjects your retirement account balance from current savings plus ongoing monthly contributions and an assumed return.Return on Ad Spend (ROAS) CalculatorCalculate your return on ad spend (ROAS) from ad revenue and ad spend.Return on Equity (ROE) CalculatorCalculate Return on Equity (ROE), a key profitability ratio measuring how efficiently a company generates profit from shareholders' equity.Return on Investment (ROI) CalculatorCalculate the return on investment (ROI) and net profit from an initial investment and its final value.Reverse Percentage CalculatorWork backwards from a final value and a known percentage change to find the original value it started from.Reverse Sales Tax CalculatorFind the pre-tax price and tax amount from a total price that already includes sales tax.Rhombus Area Calculator (Diagonals Method)Calculate the area of a rhombus from the lengths of its two diagonals.Right Triangle Calculator (Pythagorean Theorem)Calculate the hypotenuse, area and perimeter of a right triangle from its two legs.RMR Calculator (Katch-McArdle Formula)Estimate your Resting Metabolic Rate using the Katch-McArdle formula, based on lean body mass.Road Trip Fuel Budget CalculatorEstimate the total cost of a road trip, combining fuel cost with a daily food and lodging budget.Roof Rafter Length and Pitch CalculatorCalculates rafter length from run and rise, plus the roof pitch expressed in the standard x-in-12 notation.Roof Shingle Bundle CalculatorCalculate the number of shingle bundles needed to cover a roof, including a waste allowance.Roofing Shingles CalculatorEstimate the number of shingle bundles needed for a roofing job.Rounding CalculatorRound a number to a chosen number of decimal places using standard round-half-up rounding.Rowing Split Pace CalculatorCalculate your rowing split pace per 500 meters.Rule of 72 CalculatorEstimates how many years it takes an investment to double at a given annual rate of return, using the Rule of 72.Rule of Three CalculatorSolve a rule-of-three (direct proportion) problem: if A corresponds to B, find what C corresponds to.Running Pace CalculatorCalculates your running pace in minutes per kilometer and minutes per mile from a distance and total time.SaaS MRR Growth CalculatorCalculates net new MRR, ending MRR and month-over-month growth rate from new and churned monthly recurring revenue.Safe Withdrawal Rate CalculatorCalculate what percentage of your portfolio you'd be withdrawing annually, to compare against safe withdrawal rate guidelines.Salary Hike (Increment) CalculatorCalculate your new salary and raise amount after a percentage salary hike (increment).Salary to Hourly Wage CalculatorConvert an annual salary into an equivalent hourly wage, based on your typical hours and weeks worked per year.Sales Growth CalculatorCalculate sales growth — the dollar and percentage increase (or decrease) in sales between two periods.Sample Size Calculator (for Estimating a Mean)Calculate the minimum sample size needed to estimate a mean within a desired margin of error at a chosen confidence level.Sand CalculatorCalculate the volume and weight of sand needed to cover an area at a given depth.Savings Goal Required Rate CalculatorWorks out the annual growth rate you'd need to turn a starting amount into a target amount by a chosen date.Scholarship Cost Coverage CalculatorCalculates your remaining out-of-pocket tuition cost and what percentage a scholarship covers.Sector Area CalculatorCalculate the area and arc length of a circular sector (a 'pie slice' of a circle) given its radius and angle.Shoe Size Converter (US, UK, EU)Convert shoe sizes between US, UK and EU sizing systems.Simple Interest CalculatorCalculate simple interest and the total amount owed on a principal over time.Simple Probability CalculatorCalculates the probability and odds of a favorable outcome from the total number of possible outcomes.Singapore ABSD Calculator (Additional Buyer’s Stamp Duty)Estimate the Additional Buyer’s Stamp Duty (ABSD) payable on a Singapore property purchase.Singapore Buyer’s Stamp Duty CalculatorEstimate Buyer’s Stamp Duty (BSD) on a Singapore property purchase.Singapore CPF Contribution CalculatorEstimate your monthly CPF contributions in Singapore.Singapore GST CalculatorAdd or remove Singapore’s 9% GST from an amount.Singapore Income Tax CalculatorEstimate your Singapore resident income tax.Singapore Parenthood Tax Rebate CalculatorEstimate your Parenthood Tax Rebate (PTR) based on the number and order of your children.Singapore Property Tax Calculator (Owner-Occupied)Estimate annual property tax on an owner-occupied residential property.Singapore SRS Contribution & Tax Relief CalculatorEstimate your Supplementary Retirement Scheme (SRS) tax relief from a planned contribution.Skinfold Body Fat Percentage Calculator (Jackson-Pollock 3-Site)Estimate body fat percentage from three skinfold measurements using the Jackson-Pollock formula.Sleep Cycle Bedtime CalculatorWorks backward from your wake-up time to suggest a bedtime aligned with complete 90-minute sleep cycles.Slope of a Line CalculatorFinds the slope and y-intercept of the line through two given points.Specific Gravity CalculatorCalculate the specific gravity of a substance relative to a reference density (typically water).Specific Heat Energy CalculatorCalculates the heat energy required to change a substance's temperature, using its mass and specific heat capacity.Speed Converter CalculatorConverts a speed between meters per second, kilometers per hour, miles per hour and knots all at once.Sphere Volume and Surface Area CalculatorCalculate the volume and surface area of a sphere from its radius.Sports Activity Calories Burned CalculatorEstimates calories burned during a named sports activity based on your body weight and duration.Sports Team Win Percentage CalculatorCalculates a team's win percentage from wins, losses and ties, counting ties as half a win.Square Feet to Square Meters ConverterConvert square feet to square meters instantly using a precise conversion factor.Square Meters to Square Feet ConverterConvert square meters to square feet instantly using a precise conversion factor.Square Perimeter and Area CalculatorCalculate the area, perimeter and diagonal length of a square from its side length.Stair Rise and Run CalculatorCalculates the rise per step from total staircase height and number of steps, and flags whether it falls in a typical comfortable range.Standard Deviation Calculator (5 Numbers)Calculate the mean, variance and population standard deviation of five numbers.Standard Error of the Mean CalculatorCalculate the standard error of the mean — how much a sample mean is expected to vary from the true population mean.Startup Runway CalculatorCalculates how many months of cash runway a startup has left and projects the date it runs out at the current burn rate.Stock Profit and Loss CalculatorCalculate the net profit or loss and percentage return on a stock trade, including buy and sell commissions.Stone to Pounds ConverterConvert stone to pounds instantly using a precise conversion factor.Stopping Distance CalculatorEstimate total stopping distance — reaction distance plus braking distance — for a given speed and road condition.Student Loan Monthly Payment CalculatorCalculates the fixed monthly payment on a student loan given its amount, interest rate and repayment term.Student Loan Total Interest CalculatorStudent-Teacher Ratio CalculatorCalculate the student-to-teacher ratio for a class or school.Study Hours per Credit Planner CalculatorCalculates recommended weekly study hours based on your credit load and a study-hours-per-credit guideline.Subscription Annual Cost CalculatorCalculates the total yearly cost of your recurring monthly subscriptions.Sweat Rate Calculator (Athlete Hydration)Estimate your sweat rate during exercise from your pre- and post-exercise body weight.Swim Pace per 100m CalculatorCalculates your swimming pace per 100 meters from a total distance and time.Target Race Pace for Goal Time CalculatorCalculates the pace per kilometer you need to hold to achieve a specific goal finish time over a given race distance.Tax Bracket Effective Rate CalculatorIllustrates how a tiered tax bracket system produces an effective tax rate lower than your top marginal rate, using an example bracket structure.TDEE Calculator (Total Daily Energy Expenditure)Calculate your Total Daily Energy Expenditure (TDEE) — the calories you burn per day including activity.Temperature Converter CalculatorConverts a temperature between Celsius, Fahrenheit and Kelvin all at once.Tennis First Serve Percentage CalculatorCalculate first serve percentage and points won on first vs. second serve in tennis.Terminal Velocity CalculatorEstimate the terminal velocity of a falling object based on mass, drag, and area.Test Curve CalculatorApplies a flat point curve to a raw test score, capped at a maximum of 100%.Thermostat Energy Savings CalculatorEstimate potential heating/cooling cost savings from adjusting your thermostat setting.Tile Flooring CalculatorCalculate how many tiles you need for a room based on its area, tile size and a waste allowance.Time Card Calculator (Work Hours)Calculate total hours worked from clock-in and clock-out times, minus any unpaid break.Time Duration Converter CalculatorConverts a time duration between seconds, minutes, hours, days and weeks all at once.Time Elapsed Calculator (Multiple Units)Calculate the exact time elapsed between two dates, shown in days, hours, and minutes.Time to Graduation Estimator CalculatorEstimates the number of semesters and a projected graduation date based on remaining credits and your typical course load.Time Until Retirement CalculatorCalculates your projected retirement date and years remaining based on your birth date and target retirement age.Time Zone Difference Estimate CalculatorCalculates the hour difference between two time zones from their UTC offsets.Tip and Bill Split Combined CalculatorCalculates the tip amount, total bill and even share per person for a group meal in one step.Tire Size Comparison CalculatorCompare two tire sizes to see the difference in overall diameter and the resulting effect on speedometer accuracy.Topsoil CalculatorCalculate how many cubic yards of topsoil you need to cover an area at a given depth.Torque Unit ConverterConvert torque values between Newton-meters, foot-pounds and inch-pounds.Towing Payload Capacity CalculatorCheck whether your vehicle is within its safe weight limit once passengers, cargo and trailer tongue weight are accounted for.Trade-In vs Private Sale CalculatorCompare the net cash you'd walk away with from trading in your car versus selling it privately.Trapezoid Area CalculatorCalculate the area of a trapezoid from its two parallel side lengths and height.Triangle Area Calculator (Base and Height)Calculate the area of a triangle from its base and perpendicular height.UAE Corporate Tax CalculatorEstimate UAE corporate tax owed on taxable income.UAE DLD Property Transfer Fee CalculatorEstimate Dubai Land Department (DLD) transfer and mortgage registration fees.UAE End of Service Gratuity CalculatorEstimate your end-of-service gratuity under UAE labour law.UAE GPSSA Pension Contribution CalculatorEstimate GPSSA pension contributions for UAE national employees.UAE Overtime Pay CalculatorEstimate your overtime pay under UAE labour law.UAE Property Rental ROI CalculatorEstimate the gross and net rental yield on a UAE property investment.UAE RERA Rent Increase Calculator (Dubai)Estimate the maximum legal rent increase allowed under Dubai’s RERA rental index.UAE VAT CalculatorAdd or remove UAE VAT from an amount.UK Capital Gains Tax CalculatorEstimate UK Capital Gains Tax on assets other than residential property.UK Inheritance Tax CalculatorEstimate UK Inheritance Tax due on an estate, including the residence nil-rate band.UK ISA Allowance TrackerTrack how much of your £20,000 annual ISA allowance you have used and how much remains.UK Stamp Duty Calculator (SDLT)Estimate Stamp Duty Land Tax (SDLT) on a residential property purchase in England or Northern Ireland.UK Student Loan Repayment CalculatorEstimate your monthly and annual student loan repayment across Plan 1, 2, 4, 5 or Postgraduate loans.UK Take-Home Pay CalculatorEstimate your UK take-home pay after Income Tax and National Insurance.UK VAT CalculatorAdd or remove VAT from an amount using current UK VAT rates.Unit Price Comparison CalculatorCompare two products by price per unit to see which is the better value.Unix Timestamp / Epoch Day CalculatorConvert a calendar date into its Unix day number and timestamp in seconds, and see days from today.USA 401(k) Retirement CalculatorProject your 401(k) balance at retirement, including employer match.USA Child Tax Credit CalculatorEstimate your federal Child Tax Credit after any high-income phase-out.USA Federal Income Tax Calculator (Single Filer)Estimate your 2025 US federal income tax liability as a single filer.USA FICA Tax Calculator (Social Security & Medicare)Estimate your employee-side Social Security and Medicare (FICA) payroll tax withholding.USA Long-Term Capital Gains Tax CalculatorEstimate federal long-term capital gains tax (single filer), including the Net Investment Income Tax.USA Sales Tax CalculatorCalculate sales tax and total price using approximate combined state and local sales tax rates.USA Social Security Benefit (PIA) CalculatorEstimate your Primary Insurance Amount (PIA) from your Average Indexed Monthly Earnings.Vacation Trip Budget CalculatorAdd up flights, lodging, food and activities to calculate your total trip cost and cost per traveler.Vector Cross Product Calculator (3D)Calculate the cross product of two 3D vectors, producing a new vector perpendicular to both.Vector Magnitude Calculator (3D)Calculate the magnitude (length) of a 3D or 2D vector from its components.Vertical Projectile Max Height CalculatorCalculates the maximum height and time to peak for an object launched straight up, ignoring air resistance.VO2 Max Estimate Calculator (Cooper Test)Estimate your VO2 max from the distance you cover in a 12-minute run, using the Cooper test formula.Volume Converter CalculatorConverts a volume between milliliters, liters, cubic meters, cups, fluid ounces, pints, quarts and gallons all at once.Volume of a Cone CalculatorCalculate the volume and base area of a cone from its radius and height.WACC Calculator (Weighted Average Cost of Capital)Calculate a company's Weighted Average Cost of Capital (WACC), a key discount rate used in valuation and NPV analysis.Waist Circumference Health Risk CalculatorCheck your waist circumference against general health risk thresholds.Waist-to-Height Ratio CalculatorCalculates your waist-to-height ratio and a general risk category, a simple alternative to BMI for assessing central body fat.Waist-to-Hip Ratio CalculatorCalculate your waist-to-hip ratio and see your general health risk category based on WHO guidance.Wall Stud CalculatorCalculate how many wall studs you need for a wall based on its length and stud spacing.Wallpaper Rolls CalculatorCalculates how many whole rolls of wallpaper you need for a wall area, including a waste allowance.Wave Speed, Frequency and Wavelength CalculatorCalculates wave speed from a wave's frequency and wavelength using the fundamental wave equation.Weeks Between Dates CalculatorCalculate the number of whole weeks, plus any remaining days, between two dates.Weight Converter CalculatorConverts a weight between milligrams, grams, kilograms, tonnes, pounds and ounces all at once.Weighted Average CalculatorCalculate a weighted average from up to three values and their weights.Weighted GPA (Three Courses) CalculatorCalculates a credit-weighted GPA across three courses with different credit hours and grade points.Weighted Grade CalculatorCalculate an overall course grade from category scores and weights, such as homework, quizzes, midterm and final.What Percent Is X of Y CalculatorCalculate what percent one number is of another (e.g. 25 is what percent of 200?).Work Days Between Dates Estimate CalculatorGives a quick statistical estimate of the number of weekdays between two dates using a 5/7 ratio.Work Done Calculator (Physics)Calculate the mechanical work done by a constant force over a distance.Work Hours to Workdays CalculatorConvert a total number of work hours into full workdays and remaining hours.Working Capital CalculatorCalculate working capital and the current ratio from current assets and liabilities.Yards to Meters ConverterConvert yards to meters instantly using a precise conversion factor.Z-Score CalculatorCalculate a z-score (standard score) from a value, mean, and standard deviation.
