Volume Calculator
Calculate the volume of common 3D shapes — boxes, cylinders, spheres and more.
Volume for solids
Volume is the space a three-dimensional object occupies, and each solid has its own formula. This calculates the volume of common solids from their dimensions, useful for anything from filling a tank to shipping a box to a maths problem.
Choose a solid and enter its dimensions to find the volume.
Cubic units and the scaling surprise
Volume is measured in cubic units, since it multiplies three dimensions, which is why getting the units consistent matters even more than with area. There is also a genuinely surprising fact worth knowing: volume scales with the cube of size, so doubling every dimension of an object multiplies its volume by eight, not two. This is why a slightly larger container holds far more than it looks, and why a small increase in a pizza's diameter is so much more food. The same divide-and-conquer approach as with area works for complex solids — break them into simple shapes and add the volumes — making almost any volume calculable from the basic formulas.
Common questions
Why does doubling a shape's size multiply volume by eight?
Because volume scales with the cube of size — doubling all three dimensions multiplies them together as two times two times two, which is eight.
How do I find the volume of a complex solid?
Break it into simple solids, calculate each volume, and add them up — the same approach as for irregular areas.
Is anything uploaded?
No. The calculation happens in your browser.