Triangle Area Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the base and the perpendicular height.
- Press Calculate for the area.
How it works
The area of a triangle is ½ × base × height, where the height is measured at a right angle to the base.
Worked example
Base 6 m, height 4 m. Area = ½ × 6 × 4 = 12 m².
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.