Volume Calculator
Calculate the volume of a box, cube, cylinder, sphere or cone.
Whether you're figuring out how much a container holds, how much material fills a space, or how much water a tank needs, volume calculations for common 3D shapes cover most practical scenarios.
Volume grows faster than you'd expect
Doubling every dimension of a shape doesn't double its volume — it multiplies it by 8, since volume scales with the cube of linear dimensions.
Frequently asked questions
What's the difference between volume and capacity?
Volume is the mathematical space a shape occupies, while capacity usually refers to how much a container can hold, often in liquid units.
How do I convert cubic feet to gallons?
1 cubic foot equals approximately 7.48 gallons.