FREE ONLINE CALCULATOR / GEOMETRY
Regular Polygon Calculator
Find area and perimeter of a regular polygon. Fast, private, and built to make every number easier.
Input values
✦ InteractiveHow does this calculator work?
Find area and perimeter of a regular polygon. Edit the inputs and see the computed results. All calculations take place inside your browser, without submitting values to a server.
A = ns²/(4tan(π/n)), n≥3
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