How to use the Volume Converter
- Enter the value.
- Choose the units.
- Read the answer and the value in every other unit.
How it's calculated
Show the formula
Value in new unit = value × (old unit in litres) ÷ (new unit in litres)
A US gallon (3.785 L) is smaller than a UK gallon (4.546 L).
Worked example
These are the example numbers the calculator opens with. Change any of them above to see your own result.
You enter
| Value | 20 |
|---|---|
| From | litre |
| To | US gallon |
You get
| 20 litre | 5.283441 US gallon |
|---|---|
| ml | 20,000 |
| m³ | 0.02 |
| US gallon | 5.283441 |
| UK gallon | 4.399385 |
| cup (US) | 84.535057 |
| fl oz (US) | 676.280454 |
Tips
- Recipes from the US use US cups (about 237 ml).
Frequently asked questions
How many litres are in a gallon?
A US gallon is 3.785 L; a UK (imperial) gallon is 4.546 L.
How many ml are in a cup?
A US cup is about 237 ml.