How it works
- Cube: side³. Box (cuboid): length × width × height.
- Cylinder: π × radius² × height. Cone: ⅓ × π × radius² × height.
- Sphere: 4/3 × π × radius³. Pyramid: ⅓ × base length × base width × height.
- Capacity: 1 litre = 1,000 cm³, 1 US gallon = 3.785411784 L and 1 UK gallon = 4.54609 L.
Frequently asked questions
How many litres are in a cubic meter?
1,000 litres. A box 1 m × 1 m × 1 m holds 1,000 L.
Are US and UK gallons different?
Yes. A UK (imperial) gallon is about 20% bigger: 4.546 L versus 3.785 L for a US gallon. Both are shown.
Results are estimates for general information and are not financial, medical or professional advice.