How volume converter works
US liquid and Imperial gallons are different; cup sizes are explicitly named.
Try an example
1 US gallon = 3.785411784 litres.
Good to know
Values use double-precision arithmetic and are rounded to 13 significant digits. Named definitions matter; choose the intended unit.
Your privacy
Processing happens on this device. We do not upload your input, put it in share links or save it to your favourites. Closing this tab discards the working input; downloaded results remain wherever you save them.