Work out the surface area of a sphere.

Two sphere surface area calculators based on radius or diameter.

Sphere Surface Area = 4 x pi x radius squared.

Sphere Surface Area = 4 π r^{2}

If inputs are in centimetres then the results are in square centimetres.

If inputs are in inches then the results are in square inches.

If inputs are in metres then the results are in square metres.

If the inputs are in feet then the results are in square feet.

Enter the radius or diameter of a sphere and click Get Surface Area Results.

Copy out your surface area of a sphere results. Highlight answer. Ctrl C = copy, Ctrl V =
paste.