Math · FREE CALCULATOR
Triangle Area Calculator
Find triangle area from base and perpendicular height. Change the sample numbers to get an instant estimate tailored to your situation.
Your inputs
Adjust any value to update the results.
Calculated results
Based on your current inputs
Calculating…
How this calculator works
Enter the base and the perpendicular height in the same units.
Formula
Area = 0.5 × base × perpendicular height.
Before you use the result
Calculator outputs are estimates based on the numbers you provide. Replace the examples with measurements, costs, rates, or product information appropriate to your situation.
Keep in mind
Height must be perpendicular to the selected base, not the sloping side length.