» Sphere Volume Calculator


Calculate sphere volume from radius or diameter with V = 4/3 pi r^3. Convert cubic units and reverse solve radius from volume.

Use this sphere volume calculator to find the volume of a sphere from its radius or diameter. It uses the standard formula V = (4/3) x pi x r^3 and can also work backwards to find the radius from a known volume.

The calculator is useful for geometry homework, tanks, balls, domes, lab work, and any measurement where you need the cubic capacity of a spherical shape. Results can be shown in common cubic units and converted to liters when needed.


Volume of a sphere formulas

$$V= \frac{4}{3}\pi r^{3}$$






Sphere Volume Calculator FAQ

What is the formula for the volume of a sphere?
The standard sphere volume formula is V = (4/3) pi r^3, where r is the radius.

Can I calculate sphere volume from diameter?
Yes. The calculator can use diameter directly and convert it to radius internally before calculating the volume.

Can I convert sphere volume to liters?
Yes. The result can be shown in liters and other cubic units, which is useful for capacity estimates.

Can I reverse solve for the radius or diameter?
Yes. If the sphere volume is known, the reverse mode can find the missing radius or diameter.

When is a sphere volume calculator useful?
It is useful for balls, domes, spherical tanks, molds, lab containers, and geometry problems involving spheres.


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