To convert liters to US gallons, divide by 3.785, or multiply by 0.264. So 1 liter is 0.264 gallons, 10 liters is 2.64 gallons and 3.785 liters is exactly 1 US gallon. A UK gallon is bigger, 4.546 liters, so 10 liters is only 2.2 UK gallons.
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How to Use the Liters to Gallons Converter
- Type a volume in liters.
- Choose US gallon (used in the US) or UK gallon (older British figures).
- Read the answer plus quarts, cups and fluid ounces.
- Tap Gallons to liters to convert the other way, then type the gallons.
| Result | What it tells you |
|---|---|
| Converted volume | Your volume in gallons (or liters). |
| Quarts, cups, fl oz | The same volume in US kitchen units. |
| Other gallon | The same volume in the other gallon type. |
| Size check | An everyday container of about that size. |
What Is a Liter and a Gallon?
A liter (L) is the metric unit of volume, used for drinks, fuel and engines almost everywhere.
A US gallon is 3.785 liters and is used for gas, milk and water in the United States. A UK (imperial) gallon is 4.546 liters, about 20 percent bigger. The UK now sells fuel by the liter, but car fuel economy is still quoted in miles per UK gallon.
How Does the Liters to Gallons Formula Work?
Liters to US gallons
gal = L / 3.785411784Same, by multiplying
gal = L x 0.264172Liters to UK gallons
UK gal = L / 4.54609US gallons to liters
L = gal x 3.785411784The US gallon is defined as 231 cubic inches, which is exactly 3.785411784 liters. For the background, read liters to gallons explained.
Liters to Gallons Examples
A 50 L car fuel tank
50 / 3.785 = 13.21 US galA 2 L soda bottle
2 x 0.264172 = 0.53 US gal20 liters in UK gallons
20 / 4.54609 = 4.40 UK galLiters to Gallons Conversion Table
| Liters | US gallons | UK gallons |
|---|---|---|
| 0.5 L | 0.132 | 0.11 |
| 1 L | 0.264 | 0.22 |
| 2 L | 0.528 | 0.44 |
| 3 L | 0.793 | 0.66 |
| 3.79 L | 1 | 0.833 |
| 4 L | 1.057 | 0.88 |
| 5 L | 1.321 | 1.1 |
| 10 L | 2.642 | 2.2 |
| 15 L | 3.963 | 3.3 |
| 20 L | 5.283 | 4.399 |
| 25 L | 6.604 | 5.499 |
| 40 L | 10.567 | 8.799 |
| 50 L | 13.209 | 10.998 |
| 60 L | 15.85 | 13.198 |
| 75 L | 19.813 | 16.498 |
| 100 L | 26.417 | 21.997 |
| 200 L | 52.834 | 43.994 |
| 500 L | 132.086 | 109.985 |
| 1,000 L | 264.172 | 219.969 |
Gallons to Liters Quick Table
| US gallons | Liters |
|---|---|
| 0.5 | 1.89 |
| 1 | 3.79 |
| 2 | 7.57 |
| 5 | 18.93 |
| 10 | 37.85 |
| 15 | 56.78 |
| 20 | 75.71 |
| 50 | 189.27 |
| 100 | 378.54 |
Doing this often? Use the gallons to liters converter.
US Gallon vs UK Gallon Compared
| US gallon | UK (imperial) gallon | |
|---|---|---|
| Liters | 3.785 | 4.546 |
| Quarts | 4 US qt | 4 UK qt |
| Fluid ounces | 128 US fl oz | 160 UK fl oz |
| Where used | US fuel, milk, water | UK fuel economy (mpg), older records |
What Changes a Liters to Gallons Conversion
US or UK Gallons
Using the wrong gallon is the biggest error, about 20 percent.
Fuel Economy Figures
UK mpg looks higher than US mpg for the same car, because the UK gallon is bigger.
Temperature
Fuel expands slightly when warm, so the same mass fills more liters on a hot day. This converter converts volume only.
When to Use a Liters to Gallons Converter
Fuel and Travel
Compare gas prices per liter with prices per gallon.
Aquariums and Tanks
Tank sizes are often given in gallons; water treatment in liters.
Cooking and Drinks
Scale bulk recipes and drink orders.
Common Mistakes
1. Mixing US and UK Gallons
Check where a figure comes from before converting.
2. Multiplying by 3.785
Liters to gallons gives a smaller number. Divide by 3.785.
3. Rounding to 4
4 L is a bit more than a US gallon. Use 3.785 for accuracy.
Fuel Price per Liter vs per Gallon
To turn a price per liter into a price per US gallon, multiply by 3.785. Fuel at $1.50 per liter costs about $5.68 per US gallon. To go the other way, divide the price per gallon by 3.785.
For a UK gallon, use 4.546 instead. That is why fuel looks more expensive per UK gallon than per US gallon at the same pump price.
| Price per liter | Per US gallon | Per UK gallon |
|---|---|---|
| $1.00 | $3.79 | $4.55 |
| $1.50 | $5.68 | $6.82 |
| $2.00 | $7.57 | $9.09 |
Common Containers in Liters and Gallons
| Container | Liters | US gallons |
|---|---|---|
| Water bottle | 0.5 | 0.13 |
| Soda bottle | 2 | 0.53 |
| Milk jug (US) | 3.79 | 1 |
| Water cooler jug | 18.9 | 5 |
| Car fuel tank | 50 to 70 | 13 to 18.5 |
| Bathtub, filled | 150 to 300 | 40 to 80 |
A US milk jug is the easiest way to picture a gallon: almost four 1 L bottles.
Accuracy and Limitations
Both gallons are exact by definition, so the math is exact. Only the display is rounded.
What it converts accurately
- Liters to US or UK gallons and back
- US quarts, cups and fluid ounces
- Very small and very large volumes
What it does not cover
- US dry gallons (rarely used)
- Temperature and density effects
- Barrels of oil
How We Convert Liters to Gallons
Frequently Asked Questions About Liters to Gallons
How do I convert liters to gallons?
Divide the liters by 3.785 for US gallons. For example, 20 L is 5.28 US gallons.
How many liters are in a gallon?
A US gallon is 3.785 liters. A UK gallon is 4.546 liters.
How many gallons is 1 liter?
One liter is 0.264 US gallons, or 0.22 UK gallons.
How many gallons is 50 liters?
50 liters is 13.21 US gallons.
Is a gallon 4 liters?
Close, but no. A US gallon is 3.785 liters, about 5 percent less than 4 liters.
Why are US and UK gallons different?
They come from old British measures that were standardized differently in each country.
How many 1 liter bottles make a gallon?
About 3.8 one-liter bottles make a US gallon.
How many quarts are in a liter?
One liter is 1.057 US quarts.
How many liters is 10 gallons?
10 US gallons is 37.85 liters.
How many liters is a 5 gallon water jug?
A 5 US gallon jug holds 18.93 liters, the size used on most office water coolers.
How do I convert a price per liter to a price per gallon?
Multiply the price per liter by 3.785 for a US gallon, or by 4.546 for a UK gallon.
Sources
- Unit conversion (US National Institute of Standards and Technology).
- NIST Handbook 44 (NIST; US customary unit definitions).
- The Units of Measurement Regulations 1995 (UK legislation; imperial gallon).
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