App description

Sphere volume: 4/3 * pi * cube of radius \(V= \frac {4}{3} πr^3\)

Surface area: 4 * pi * square of radius \(S = 4πr^2\)

Usage example

Input value:

Unit: Metres

Radius: 9

Click "calculate" to output the result

Spherical surface area: 1017.88 square meters