CALCULATOR
Triangle Area Calculator
Find a triangle’s area from its base and perpendicular height in meters.
How the calculation works
Area = base × perpendicular height / 2.
Worked example
With base 6 m, height 3 m, triangle area is 9 m².
Assumptions and limits
Forward calculation from base and perpendicular height; not a side-length or inverse solver. Enter both lengths in meters, from 0.001 to 1,000,000. Geometric area only; no waste allowance or material thickness.