AreaCalc
Calculator

A fraction of a full circle

Circular sector area calculator

Combine radius with a central angle greater than 0° and no more than 360°.

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

Angle is the central angle in degrees, from above 0 to 360.

m
°

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