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## Properties of Sphere

This tool calculates the basic geometric properties of a sphere. Enter the shape dimensions R or D below. The calculated results will have the same units as your input. Please use consistent units for any input.

R = | |||

...or | |||

D = |

Geometric properties: | |||

Radius = | |||

Diameter = | |||

Volume = | |||

Surface area = |

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## Definitions

### Geometry

The sphere is a 3-dimensional object (solid), with all the points of its outer outer surface having an equal distance from a common point, called centre. That distance is called radius of the sphere. The volume of a sphere is given by the formula:

where r the radius.

The outer surface area of the sphere is given by the next formula: