AreaCalc
Calculator

Two semiaxes times pi

Ellipse area calculator

Enter the semi-major and semi-minor axes, not the full diameters.

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

Enter the two semiaxes, each half of its full axis.

m
m

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