How it works
Volume = π × radius² × heightthe circular end area (π r²) times the height
- radius
- from the centre of the end to its edge
- height
- the length of the cylinder
- π
- pi, about 3.14159
To read the result in litres, divide cubic centimetres by 1000. A can 3 cm in radius and 12 cm tall holds about 339 cm³, or 0.34 litre.
Frequently asked questions
What is the volume of a cylinder with radius 5 and height 10?
About 785.4 cubic units.
What is the formula for a cylinder?
Pi times the radius squared times the height, π r² h.
Do I use the radius or the diameter?
The radius. If you have the diameter, halve it first.
How do I find the volume in litres?
Work in centimetres, then divide the cubic-centimetre result by 1000.