Regular Polygon Calculator
Calculate area and perimeter for any regular polygon given number of sides and side length.
Formula
A = (n×s²)/(4×tan(π/n)), P = n×s
Area of a regular n-gon with side s. Perimeter is n times the side length.
Examples
Regular hexagon (n=6, s=5)
Square (n=4, s=4)
Pentagon (n=5, s=3)
Frequently Asked Questions
What is the formula for a regular polygon area?
A = (n × s²) / (4 × tan(π/n)), where n is number of sides and s is side length.
What is the perimeter of a regular polygon?
P = n × s, the number of sides times the side length.
About this Calculator
Calculate area and perimeter for any regular polygon given number of sides and side length. All calculations are performed in your browser for instant results. Formulas are mathematically exact using JavaScript's built-in Math functions.