Volume Converter
Convert liters, gallons, cubic feet, and cubic meters.
This volume converter converts between liters, gallons, cubic feet, cubic meters, and other common volume units. It's the tool to use whenever you need to figure out volume in a different unit system, from cooking measurements to shipping container capacity.
Select your source and target volume units, enter a value, and the converter returns the result instantly.
Worked Calculation Examples
| Scenario | Result | Calculation Step |
|---|---|---|
| 5 US gallons to liters | ≈18.93 L | 5 × 3.785 ≈ 18.93 L. |
| 50 liters to cubic feet | ≈1.77 cu ft | 50 ÷ 28.317 ≈ 1.77 cu ft. |
How to Calculate Volume Conversions
Volume conversions multiply the source value by a fixed cubic factor, since volume is a three-dimensional measurement. One US gallon equals approximately 3.785 liters, and one cubic foot equals about 28.317 liters.
US Gallon vs. Imperial Gallon
A US gallon (3.785 liters) is smaller than an imperial (UK) gallon (4.546 liters) - the same word means a different amount depending on which country's system is being used, which matters when converting fuel economy or liquid recipe measurements across regions.
How to Use the Volume Converter
- Open the Volume Converter and enter the values requested in the input fields.
- Check the units, percentages, dates, or time periods before reading the answer.
- Review the instant result and adjust any value to compare another scenario.
- Use the formula, example, and FAQs below to understand how the volume converter works.
Frequently Asked Questions
How do I find volume in liters from gallons?
Multiply US gallons by 3.785 to get the equivalent in liters.
How to calculate volume of a cube in this converter?
Calculate the cube's volume separately (side length cubed) in your starting unit, then use this converter to translate that volume figure into a different unit.
How to compute volume between cubic feet and liters?
Multiply cubic feet by approximately 28.317 to get the equivalent in liters.
How do I use this volume converter?
Enter the known values, review the units or settings, and the calculator updates the result instantly. The formula and example on this page show how the answer is produced.
What does the Volume Converter calculate?
Convert liters, gallons, cubic feet, and cubic meters. It is designed for fast browser-based calculations without sign-up, downloads, or manual spreadsheet setup.
What formula does this volume use?
The formula is: target = source * conversion factor. The liter was originally defined in 1795, during the French Revolution's metric reforms, as the volume of one kilogram of pure water at a specific temperature - the US gallon, by contrast, descends from an older English wine-trade measurement standard, which is one reason US and metric volume units don't convert with any clean round number between them.
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Last updated: September 27, 2026.