Radius :
Diameter :
Surface Area :
Volume :
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Radius is distance from centre of sphere to the surface of the circle usually represented as r

Diameter is distance from one point on surface to another point in on the surface with the line passing through the centre of the circle
Diameter (d) = 2 * r

Volume is the volume of the sphere
Volume (v) = 4/ 3 * π * r³

Surface Area is the total surface area of the sphere
Surface Area (a) = 4 * π * r²

Calculate Others button computes the all other parameters of sphere given any one paramter

Given any one field value all others can be computed. Change any of the textbox and press enter to compute other fields