Weight Converter Calculator
Enter a weight in any unit to see it instantly converted into six common metric and imperial weight units.
Weight Converter Calculator
Converts a weight between milligrams, grams, kilograms, tonnes, pounds and ounces all at once.
This calculator converts a single weight value into six widely used metric and imperial units simultaneously — milligrams, grams, kilograms, tonnes, pounds and ounces — using exact standardized conversion factors. Change the input unit directly on the Weight field to enter your value however it's most convenient, and every converted result updates together, making it useful for cooking, shipping, fitness tracking, or any other everyday weight conversion.
Example
- With the default values shown above, this calculator returns: Milligrams ≈ 1000000 mg; Grams ≈ 1000 g; Kilograms ≈ 1 kg; Tonnes ≈ 0.001 t; Pounds ≈ 2.205 lb; Ounces ≈ 35.27 oz.
Frequently Asked Questions
Is this the same as a mass converter?
Yes — weight and mass units are used interchangeably in everyday conversion contexts like this one, even though they're technically different physical quantities.
How precise are the pound and ounce conversions?
They use the internationally standardized exact conversion factors (1 lb = 0.45359237 kg), so results are as precise as the decimal places shown.
Sources
- Standard formula, publicly documented method