Regular Polygon Area Calculator
Calculate the area of a regular polygon from number of sides plus side length, apothem, circumradius, or known area, with perimeter, angles, and radii.
Area of a regular polygon
English SERPs for regular polygon area calculator focus on a regular n-gon: all sides and all angles are equal. Users usually know the number of sides and one measurement such as side length, apothem, circumradius, or area.
A is area; P is perimeter; a is the apothem, also called the inradius.
n is number of sides and s is side length.
Supported inputs
| Known values | What the calculator returns |
|---|---|
| Number of sides and side length | Area, perimeter, apothem, circumradius, interior angle, central angle. |
| Number of sides and apothem | Side length is recovered before the area calculation. |
| Number of sides and circumradius | Side length and apothem are recovered from the radius. |
| Number of sides and known area | Reverse calculation for side length and other dimensions. |
Frequently Asked Questions
Sources and References
- Area of a Regular Polygon CalculatorOmni Calculator
- Regular Polygon CalculatorCalculatorSoup
- Regular PolygonWolfram MathWorld
- ApothemWolfram MathWorld
Calculations are based on the listed reference sources. Links open in a new tab.
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