Square Perimeter Calculator

Shape :
Calculate :
s
P = 4s
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What is a Square ?

A square is a geometric shape characterized by four equal sides and four right angles. In a square, opposite sides are parallel, and all angles are 90 degrees. The length of one side of a square is typically denoted as s.

The formula for calculating the perimeter (P) of a square is given by:

A = 4 x s

where:

  • P is the perimeter of the square
  • s is the length of one side of the square.

To find the perimeter of a square, you simply multiply the length of one of its sides with 4.

Author Information

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Rajesh V U

Full-Stack Developer & Storage Technologist | Creator of UnitSmash.com
Last updated: June 1, 2026

I am a Storage Technologist with strong experience in enterprise storage systems, Angular development, and web-based tools. I enjoy building practical calculators, converters, and utilities, and I also create original cartoons. I share my tools, articles, and creative work on my personal website, rajeshvu.com.