Convert Liters to US gallons
1 liter is 0.26 gal. One liter is exactly 0.264172052358 US gallons.
One liter is 0.26417205 US gallons. To convert liters to US gallons, multiply by 0.26417205; to go the other way, divide by 0.26417205 or multiply by 3.7854118. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 130. One cubic decimeter.
Factor checked against the defining standard · How we check
- Liters × 0.26417205
1 * 0.2641720.264 gal
1 liter in every volume unit
| Unit | Value | Exact factor |
|---|---|---|
| US teaspoons | 202.8841362 tsp | × 202.884136211 |
| US tablespoons | 67.6280454 tbsp | × 67.6280454037 |
| US fluid ounces | 33.8140227 fl oz | × 33.8140227018 |
| US cups | 4.226752838 cup | × 4.22675283773 |
| US pints | 2.113376419 pt | × 2.11337641887 |
| US quarts | 1.056688209 qt | × 1.05668820943 |
| US gallons | 0.2641720524 gal | × 0.264172052358 |
| milliliters | 1,000 ml | × 1,000 |
| liters (as entered) | 1 L | — |
| imperial gallons | 0.2199692483 gal (UK) | × 0.219969248299 |
| imperial quarts | 0.8798769932 qt (UK) | × 0.879876993196 |
| imperial pints | 1.759753986 pt (UK) | × 1.75975398639 |
| imperial fluid ounces | 35.19507973 fl oz (UK) | × 35.1950797279 |
| imperial gills | 7.039015946 gi (UK) | × 7.03901594557 |
| cubic millimetres | 1,000,000 mm³ | × 1,000,000 |
| cubic centimetres | 1,000 cm³ | × 1,000 |
| cubic inches | 61.02374409 in³ | × 61.0237440947 |
| cubic feet | 0.03531466672 ft³ | × 0.0353146667215 |
| cubic yards | 0.001307950619 yd³ | × 0.00130795061931 |
| cubic metres | 0.001 m³ | × 0.001 |
Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
The same converter answers this pair however it is written: litres to US gallons is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.
How do you convert liters to US gallons? The converter and the working
- 1.Take the measurement in liters.
- 2.Multiply by 0.26417205 — that is how many US gallons fit in one liter.
- 3.To go back the other way, divide by 0.26417205, or multiply by 3.7854118.
Worked example: 25 liters to US gallons
- Formula
- L × 0.26417205 = gal
- Arithmetic
- 25 × 0.26417205 = 6.6 gal
- Answer
- 25 L = 6.6 gal
The factor is rounded for display; the figure above is computed from the full value.
Liters to US gallons conversion table
| Liters | US gallons |
|---|---|
| 1 L | 0.26 gal |
| 2 L | 0.53 gal |
| 3 L | 0.79 gal |
| 4 L | 1.06 gal |
| 5 L | 1.32 gal |
| 6 L | 1.59 gal |
| 7 L | 1.85 gal |
| 8 L | 2.11 gal |
| 9 L | 2.38 gal |
| 10 L | 2.64 gal |
| 12 L | 3.17 gal |
| 15 L | 3.96 gal |
| 20 L | 5.28 gal |
| 25 L | 6.6 gal |
| 50 L | 13.21 gal |
| 100 L | 26.42 gal |
| 200 L | 52.83 gal |
| 300 L | 79.25 gal |
| 500 L | 132.09 gal |
| 1000 L | 264.17 gal |
| 2000 L | 528.34 gal |
| 5000 L | 1,320.86 gal |
| 10000 L | 2,641.72 gal |
A US gallon and a UK gallon are not the same gallon
The US gallon is 3.785411784 liters; the imperial gallon, still used in the UK for fuel economy and in a few Commonwealth countries, is 4.54609 liters — twenty per cent larger. Every figure on this page is the US gallon. It is also why British and American miles-per-gallon numbers cannot be compared: 40 mpg in the UK is about 33 mpg in the US, on the same car.
NIST Handbook 44, Appendix C — general tables of units of measurement
What is a liter?
One cubic decimeter. A liter of water weighs almost exactly one kilogram, which is how the unit was designed.
What is a US gallon?
Exactly 231 cubic inches. The imperial gallon is 4.546 liters, so US and UK fuel economy figures are not comparable.
How many US gallons are in a liter?
One liter is 0.26417205 US gallons. Going the other way, one US gallon is 3.7854118 liters. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every volume unit here
The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a liter.
Cite this page
- APA
- Rule Calculator. (2026). Convert Liters to US gallons. Rule Calculator. https://rulecalculators.com/convert/liter-to-gallon
- MLA
- "Convert Liters to US gallons." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/liter-to-gallon.
- Chicago
- Rule Calculator. "Convert Liters to US gallons." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/liter-to-gallon.
The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.
Questions people actually ask
- How many US gallons are in a liter?
- 0.26417205. Exactly 231 cubic inches. The imperial gallon is 4.546 liters, so US and UK fuel economy figures are not comparable.
- How do I convert US gallons back to liters?
- Divide by 0.26417205, or multiply by 3.7854118 — they are the same operation.
Other volume conversions
US gallons to liters — the same conversion the other way.