Convert between all common volume units for cooking and science.
1 US gallon = 3.785 liters. 1 cup = 236.6 ml. 1 fl oz = 29.57 ml.
UK and US gallon differ: 1 UK gallon = 4.546 liters.
This tool is most useful when you need a result you can trust without double-checking. It applies the correct formula automatically and handles edge cases that trip up manual calculation.
Many errors with practical calculators arise from not reading the result in context. A number without units, without scale, or without comparison against a reference range is hard to interpret correctly.
A traveller converts currency amounts for a trip budget, checking live rates against historical averages to understand whether the current rate is favourable or whether it makes sense to exchange at a different time.
1 liter = 4.227 US cups.
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