Sphere Volume Equation. Let’s think of a ball as a perfect sphere; V = 43πr3 v = 43π ⋅ 33 v = 36π = 113.1 v = 4 3 π r 3 v = 4 3 π ⋅ 3 3 v = 36 π = 113.1.

The formula for the volume of a sphere can be derived using the formula for the surface area of a. The steps to calculate the volume of a sphere are: