How Volume Converter conversion works
Use volume conversion for drinks, containers, fuel, and recipes that use different measuring systems.
Volume units convert through liters. This tool labels gallon and cup values as US customary units to avoid ambiguity.
Volume Converter conversion examples
- 1 US gallon equals 3.7854 liters.
- 250 milliliters equals 1.0567 US cups.
Volume Converter accuracy and rounding
For cooking, small differences may be practical to round. For chemical or product volumes, use the source precision.
Questions about the Volume Converter
Is a US gallon the same as an imperial gallon?
No. This tool uses US gallons; an imperial gallon is larger.
How many milliliters are in a liter?
One liter contains exactly 1,000 milliliters.
Are cups standardized worldwide?
No. The cup in this tool is the US customary cup.