Volume Calculator
Pick a box, cylinder, sphere or cone and enter its dimensions in centimetres to get the volume in cm³ and litres.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
V = l × w × h
500cm³
= 0.5 L
Volume 500 cm³ = 0.5 LShow steps
- V = l × w × h = 10 cm × 5 cm × 10 cm = 500 cm³.
- In litres: 500 ÷ 1,000 = 0.5 L.
How to use the volume calculator
- 1Pick the shape — box, cylinder, sphere or cone.
- 2Enter the dimensions in centimetres — the fields adapt to the shape: length, width, height or radius.
- 3Read the volume in cm³ and litres, with the formula under Show steps.
How big is a litre?
A litre is just a 10 cm cube — 10 × 10 × 10 = 1000 cm³. If a result looks off, picture how many of those cubes it’s worth: a large soft-drink bottle is 2, a bucket about 10.
Frequently asked questions
What formulas does the volume calculator use?
Box V = l × w × h, cylinder V = π × r² × h, sphere V = 4/3 × π × r³ and cone V = 1/3 × π × r² × h. All lengths are entered in centimetres, so the volume comes out in cm³.
How do I convert cm³ to litres?
Divide by 1000: one litre is exactly 1000 cm³. The calculator shows both units, so 2500 cm³ reads as 2.5 L.
Why is a cone exactly one third of a cylinder?
A cone with the same base radius and height as a cylinder holds exactly one third of its volume — that is the 1/3 in V = 1/3 × π × r² × h. The same relation links a pyramid to its matching prism.