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Geometry

Area of Square Calculator

Area of Square Calculator

Calculate square area, perimeter, and diagonal. Enter side length for complete geometric properties.

Area of Square Calculator

Side Length (s)

Area

Perimeter

Diagonal

Formula

A = s²

A = Area
P = 4s (Perimeter)
d = s√2 (Diagonal)
√2 ≈ 1.414213562

Related Calculators

Perimeter Calculator

Pro Tips

A square's diagonal divides it into two 45-45-90 right triangles.

The diagonal is always longer than any side by a factor of √2 ≈ 1.414.

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