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Perimeter of Square

Perimeter of Square - illustration

To calculate the perimeter of a square we need to know a side length. A square is a shape with four equal sides and four right angles. The perimeter is a sum of all its sides. It could be, for example, a length of a fence around a squared garden. The elementary unit is one metre (1 m).

Perimeter of Square - formula

Perimeter of Square = 4 × side length

P = 4 × a

Perimeter of Square - calculator

The calculation unit of Perimeter of Square depends on filled values.
When you fill in your values in metres, the result is in metres.
The result of the Perimeter of Square is shown to maximum accuracy of thousandths (to 3 d.p.).