Sphere Calculator

Calculate volume, surface area, and diameter from the radius.

Last updated: June 2026 | By Patchworkr Team

Sphere Radius

Radius

Radius is required.

Formulas use a positive radius only. Volume = 4/3 pi r^3. Surface area = 4 pi r^2. Diameter = 2r.

Live Results

Enter a valid radius to see results.

Formulas

Volume: V = 4/3 pi r^3

Surface area: A = 4 pi r^2

Diameter: d = 2r

Example: r = 5

Volume: 4/3 pi (5^3) = 500pi/3 about 523.5987756

Surface area: 4 pi (5^2) = 100pi about 314.15926536

Diameter: 10

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