🧴 Liters to Gallons Converter
Convert liters to US gallons instantly, both directions.
About this tool
Converts liters to US liquid gallons using the factor 1 liter = 0.264172 US gallons.
Useful for fuel tank sizes, cooking volumes, and container capacities when comparing metric and US measurements.
Worked example
A 60-liter fuel tank holds about 15.85 US gallons, and a 5-gallon water jug is about 18.9 liters.
How to use it
- Enter a value in liters.
- The US gallon equivalent appears instantly.
- Swap direction to convert gallons back to liters.
Tips
- This uses the US liquid gallon (3.785 L), not the UK imperial gallon (4.546 L) — the two differ by about 20%, so double-check which one a source means.
- Fuel economy figures (mpg vs L/100km) are a common reason people need this conversion — pair it with the Fuel Cost Calculator.
- A US gallon of water weighs about 8.34 lb, if you also need a rough weight estimate.
FAQ
Is this the US gallon or the UK gallon?
US gallon (3.785 liters). The UK imperial gallon is larger, at about 4.546 liters — a different, separate unit.
How many liters is 1 gallon?
1 US gallon is about 3.785 liters.
Why do fuel tanks list different sizes by country?
It's not that the tank differs — it's that the units used to describe it differ; the physical volume is the same regardless of which unit label is used.
From the blog: getting the most out of this tool
Because "gallon" quietly means two different volumes depending on which country you're in, we default this page to the US gallon and say so clearly up top — a small detail that avoids a genuinely common source of error.
If you're working with UK imperial gallons instead, the conversion factor is different (4.546 L per gallon) — let us know if you'd like a dedicated imperial version and we'll consider adding one.
📖 Want the fuller explanation?
See Metric vs Imperial Units for the reasoning behind this calculation, with worked examples.