Perimeter of a Regular Polygon Calculator
Enter the number of sides and side length to instantly calculate the perimeter of any regular polygon.
Polygon Parameters
Minimum 3 sides (triangle)
Enter value in your preferred unit (m, cm, ft, in, etc.)
Result
Enter polygon parameters and click Calculate
Perimeter
in the same unit as your side length
Formula Used
P = n × s
Shape name
Number of sides
Side length
Interior angle
Common Regular Polygons
| Sides | Name | Interior Angle | Perimeter Formula |
|---|
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Summary
Enter the number of sides and side length to instantly calculate the perimeter of any regular polygon.
How it works
- Enter the number of sides (must be 3 or more).
- Enter the length of one side in your chosen unit.
- The calculator multiplies the number of sides by the side length.
- The perimeter result is displayed instantly with the formula used.
- Copy the result or clear the inputs to start over.
Use cases
- Calculate the fencing needed around a regular hexagonal garden.
- Find the perimeter of a regular polygon for geometry homework.
- Determine the edge length requirements for tiling or flooring projects.
- Verify polygon perimeter calculations in engineering and design work.
- Estimate material costs for constructing regular polygonal structures.
- Cross-check hand calculations for polygon perimeters in tests.
Frequently Asked Questions
Last updated: 2026-06-13 ·
Reviewed by Nham Vu