About this calculator
Convert litres, millilitres, cubic metres, US gallons and Imperial gallons.
US and Imperial gallons are different sizes.
Formula
All values convert through litres.
Example
1 Imperial gallon ≈ 4.54609 litres.
Accuracy
NUMTX shows the assumptions next to the calculation so you can replace defaults with values that match your situation. For measurements, supplier rates, fees, interest, tax or regulated work, confirm important figures with the appropriate official or professional source.