Square Calculator

About Square Calculator

Use the square calculator to find the main measurements of a square from a single side length.

How to Use

Use the square calculator to find the main measurements of a square from a single side length. Enter the Side length values and review the Area, Perimeter, and Diagonal outputs after you calculate.

  1. Open the calculator : Use Square Calculator from the Math category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What formula does the Square Calculator use?

Area = side². Perimeter = 4 × side. Diagonal = side × √2.

Inputs

  • Side length

Outputs

  • Area
  • Perimeter
  • Diagonal

Formula

Area = side². Perimeter = 4 × side. Diagonal = side × √2.