Equal Areas - Circles vs. Squares

Calculate radius and side lengths of equal areas for circles and squares. Solve for the radius of a circle or side of a square when they have equal areas.

Equal Areas - Circles vs. Squares

Calculate the radius and side lengths of circles and squares with equal areas.

Formulas

Circle Area: Ac = π r²

Square Area: As = s²

When Ac = As: π r² = s²

Radius of Circle (given square side): r = √(s² / π)

Side of Square (given circle radius): s = √(π r²)

Calculator

Inputs

Results

Square Side Length-- m
Area--
Calculator

Inputs

Results

Circle Radius-- m
Area--