This **sphere calculator** can help you calculate the volume, area, diameter, circumference or the radius of a sphere if you provide only one out of the 5 dimensions.

## How does this sphere calculator work?

The algorithm of this *sphere calculator* requires only one dimension to be given and that can be the radius, diameter, area or the volume; while the formulas applied are explained below:

**Diagonal (d) = 2r**

**Radius (r) = d/2**

**Area (A) = 4πr ^{2}**

**Volume (V) = 4/3πr ^{3}**

**Circumference (C) = 2πr**

■ In case the radius (r) is provided then the above formulas should be used.

■ If the diagonal (d) is the known variable then first you have to figure out the radius then compute the other 3 dimensions (C, A & V).

■ If the circumference (C) is known then first you have to determine the radius as **r = C / 2π**, then you can find the other 3 dimensions (d, A & V).

■ In case the area (A) is the given figure then **r = √(A / 4π)**. Once the radius is calculated the other figures (d, C & V) can be obtained by using the same standard equations explained.

■ Finally if the volume (V) is given then **r = Cuberoot(3V / 4π)** and the other dimensions (d & A) can be then calculated as well.

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