Understanding your calculation
Method, example and limitations
How the calculation works
Area describes a two-dimensional surface. Select its shape and use matching length units before applying the corresponding geometric formula.
Example to check
A rectangle 8 m long and 5 m wide has area 40 m². A triangle with base 8 m and perpendicular height 5 m has area 20 m².
Before using the result
Use perpendicular height where required. Square-unit conversions require squaring the length conversion factor.