How to use this converter
Each unit has a fixed factor relative to the family’s base unit. Use Swap units to reverse the direction.
- Enter what would you like to convert?, value, from unit and review the remaining options.
- Select Calculate or change a value to update the result. Read the result label and units before copying.
- Use Reset to restore the worked starting values.
Formula and method
US and UK volume units are explicitly distinguished. Display rounding does not change the underlying calculation. Display precision is adjustable from 0–15 decimal places; underlying factors are unchanged.
Worked example
1 US gallon = 3.785411784 liters.
Questions about volume converter
Are US and imperial gallons the same?
No. One US gallon is 3.785411784 liters, while one imperial gallon is 4.54609 liters. Choose US gal or UK gal explicitly. The tool does not infer a liquid’s mass or density.
What assumptions should I check?
US and UK volume units are explicitly distinguished. Display rounding does not change the underlying calculation. Display precision is adjustable from 0–15 decimal places; underlying factors are unchanged.
Are my inputs saved?
Calculations run in your browser. We store only tool IDs for favorites and recent tools. A calculation link contains your inputs only when you explicitly choose to copy one.