How to use this calculator
Choose a two-dimensional shape and enter the required dimensions. All dimensions should use the same unit.
Formula
Area is measured in square units and depends on the selected shape.
Example
A rectangle 12 ft long and 8 ft wide has area 12 × 8 = 96 ft².
Frequently asked questions
Why is area in square units?
Area measures two dimensions, so the unit is multiplied by itself.