Sphere Volume & Surface Area

Instantly calculate the surface area, volume, radius, and diameter of any sphere. Enter just one measurement to find the rest.

Sphere Calculator

Fill in one parameter below to solve for the rest.

Units:

Radius (r)

Diameter (d)

Surface Area (A)

cm²

Volume (V)

cm³

Table of Contents

Sphere Formulas

1. Radius

The distance from the center of the sphere to any point on its surface.

r = d / 2

2. Diameter

The maximum straight line distance spanning across the sphere through its center.

d = 2 × r

3. Surface Area

The total area that the outside surface of the sphere occupies.

A = 4 × π × r²

4. Volume

The total 3D space enclosed within the boundary of the sphere.

V = (4/3) × π × r³

Frequently Asked Questions