Triangle Area Calculator (Base and Height)
Enter the base and height of a triangle to calculate its area.
Triangle Area Calculator (Base and Height)
Calculate the area of a triangle from its base and perpendicular height.
This calculator provides an estimate for general informational purposes only. It is not a substitute for professional financial, mechanical or engineering advice.
The base-and-height method is the most common way to find a triangle's area: multiply the base by the perpendicular height and divide by two.
Example
- With the default values shown above, this calculator returns: Triangle Area ≈ 30.00.
Frequently Asked Questions
What is the formula?
Area = (Base × Height) ÷ 2, where height is measured perpendicular to the chosen base.
What if I only know the three side lengths?
Use a Heron's Formula triangle area calculator instead, which works from the three side lengths without needing a height.