⬜ Area of Square Calculator

Square Measurements

Square Formulas

A square is a regular quadrilateral with all four sides equal and all four angles equal to 90°. It is a special case of both rectangle and rhombus.

Area = s² (side squared)
Perimeter = 4 × s
Diagonal = s × √2

Square vs Rectangle

A square is a rectangle where all sides are equal. Area formulas differ: Rectangle uses l×w, Square uses s×s = s².

Frequently Asked Questions

What is the area of a square with side 7? ▼
Area = 7² = 49 square units. Perimeter = 4 × 7 = 28 units.
What is the diagonal of a square with side 5? ▼
Diagonal = 5 × √2 ≈ 5 × 1.414 = 7.07 units. (Using the Pythagorean theorem: √(5²+5²) = √50 = 5√2)
How do you find the side of a square from its area? ▼
Side = √Area. If area = 64 m², then side = √64 = 8 m.