About the US gallons to Liters Converter
Convert us gallons (gal) to liters (L) instantly. Includes the exact conversion factor, formula and a quick reference table.
Also known as: gal to L, US gallons to Liters, convert US gallons to Liters, gal to l, gal to l, gallons to litres.
How to use this calculator
- Enter value in us gallons.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Open “Step-by-step” to see how the answer was worked out.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
L = gal × 3.785411784
Worked example
Using the values pre-filled in the calculator above:
- Value in us gallons = 5 gal
the calculator returns:
- Liters: 18.927059 L
- Milliliters: 18,927.06 mL
- Cubic meters: 0.018927 m³
- Cubic centimeters: 18,927.06 cm³
Working
5 gal × 3.785411784 = 18.92705892 L