Area and Perimeter of a Square

  • The edges of a square are the same length; the neighbouring ones form a right angle.
  • The diagonals are equally long; they halve one another and are perpendicular.


Square Area and Perimeter of a Square
  • P – perimeter
  • A – area
  • a – edges
  • d – diagonals


Enter 1 value

a =
d =

Round to decimal places

Area A =
Perimeter P =

Calculation Procedure


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