AreaCalc
Calculator

Eight exact shape formulas

Area calculator for common 2D shapes

Choose a shape, enter its measured dimensions, and convert the exact area between metric and imperial square units.

Private browser calculation

Choose a shape and enter its dimensions

Stays on this page

Which shape are you measuring?

Measurement and result units

Required dimensions

Length and width must use the same unit.

m
m

AreaCalc handles ideal flat geometry from your measurements. It is not a land survey, GIS tool, material estimate, or irregular-shape measurement.