QuickFreeTools

Online Square Calculator

Enter side length to get area and perimeter of a square.

Frequently Asked Questions

What is the formula for square area?
Area = side × side = side². Perimeter = 4 × side.
Units?
Use any unit (e.g. cm). Area is in unit², perimeter in the same unit.
Same as geometric shapes?
Yes. The squares tool is a shortcut for the square shape with one side input.

Related Calculators