Advanced Perimeter Calculator | Online Geometry Tool for Students & Pros

Perimeter Calculator

The most advanced free tool to calculate perimeter, save history & export PDF.

Calculate Perimeter

Square
Rectangle
Circle
Triangle
Polygon

Recent Calculations

About Perimeter Calculator

Welcome to the Advanced Perimeter Calculator, a free online tool designed to help students, architects, and engineers calculate the boundary length of various geometric shapes accurately. Whether you need to find the perimeter of a simple square or a complex regular polygon, this tool provides instant results with options to save your data.

How to Use This Tool?

  • Select Shape: Choose from Square, Rectangle, Circle, Triangle, or Polygon.
  • Select Unit: Work in Meters, Centimeters, Feet, Inches, or Yards.
  • Enter Values: Input the required dimensions (e.g., side length, radius).
  • Get Results: Click calculate to see the perimeter instantly. You can then export the result to PDF or CSV.

Perimeter Formulas Used

Square: P = 4 × side
Rectangle: P = 2 × (length + width)
Circle (Circumference): P = 2 × π × radius
Triangle: P = side1 + side2 + side3
Regular Polygon: P = number of sides × side length

Frequently Asked Questions (FAQ)

Q: Is this perimeter calculator free?
A: Yes, this tool is 100% free to use for unlimited calculations.

Q: Can I save my calculations?
A: Absolutely! The tool automatically saves your recent history in your browser. You can also download a professional PDF report or a CSV file.

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