Perimeter Calculator
Calculate perimeter for common shapes.
Calculator
Result
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Formula will appear here.
About this calculator
Calculate perimeter for common shapes. Use the result as a planning estimate. Actual architectural, construction, lighting and building requirements can vary by project conditions, materials, local codes and professional specifications.
How to use this calculator
What to enter
Enter or select the following as requested: Shape; Length (m); Width (m). Follow the units, valid ranges, examples, and options displayed beside each field.
What the result means
The result is the length around the shape or along the specified curve. Check the output unit and whether the calculator expects radius, diameter, side lengths, or angles.
When to use it
Use this to estimate boundary length, edging, fencing, or the length of a geometric curve.