Polygon Calculator - Calculate Area, Perimeter, and More
Area:
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Perimeter:
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Interior Angle:
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Exterior Angle:
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Circumradius:
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Inradius:
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Understanding Polygons
A polygon is a closed shape with straight sides. Regular polygons have equal sides and angles, making them symmetrical and easier to calculate.
How to Use This Calculator
- Enter the number of sides (minimum 3)
- Input the length of one side
- Click "Calculate" to see all properties
Common Regular Polygons
- Triangle (3 sides)
- Square (4 sides)
- Pentagon (5 sides)
- Hexagon (6 sides)
- Octagon (8 sides)