Perimeter Calculator
Math CalculatorsCalculate the total boundary length of various geometric shapes.
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Total Perimeter
About This Tool
Free online Perimeter Calculator. Easily find the perimeter of squares, rectangles, and polygons by entering their side lengths. Essential for construction and math studies.
Frequently Asked Questions
Perimeter is the total distance around the outside of a two-dimensional shape. It is calculated by adding the lengths of all the sides of the polygon.
Perimeter measures the length of the boundary or outline of a shape, while area measures the total space or surface contained within that boundary.
Perimeter is a linear measurement, so it is expressed in standard units of length such as centimeters (cm), meters (m), inches (in), or feet (ft).
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