Liters to Gallons Calculator
L
US gallons:
US fluid ounces:
Imperial gallons (UK):
Calculation:
This calculator converts liters to US gallons. Type a volume in liters and you get the result in US gallons, in US fluid ounces, and in imperial gallons, the larger gallon used in the UK.
Below you will find the formula, worked examples, a conversion chart and a note on why a US gallon is not the same as an imperial gallon.
How to use the liters to gallons calculator?
Step 1: Type the volume in liters. Decimals can be written with a point or a comma.
Step 2: Click Convert or press Enter.
Step 3: The result in US gallons appears on the right. Below it you also get the US fluid ounces and the imperial gallons.
Step 4: The Calculation box shows the arithmetic with your numbers.
Liters to gallons formula
This page uses the US liquid gallon, the one sold at American gas stations. It is exactly 3.785411784 liters, because it is defined as 231 cubic inches and an inch is exactly 2.54 cm. To convert liters to gallons, divide the liters by 3.785411784:
| V(gal) = V(L) ÷ 3.785411784 |
That is the same as multiplying by 0.264172052. A US gallon is also exactly 128 US fluid ounces, so one liter is 33.81 fl oz.
The imperial gallon used in the UK is bigger: exactly 4.54609 liters, about 1.2 times a US gallon. The third result above uses that value, so you can see the difference.
Liters to gallons examples
Example 1: How many gallons is 10 liters?
V(gal) = 10 ÷ 3.785411784 ≈ 2.642 gal
A 10 liter jerrycan holds 2.642 US gallons.
Example 2: A 50 liter car fuel tank
V(gal) = 50 ÷ 3.785411784 ≈ 13.21 gal
A car with a 50 liter tank holds 13.21 US gallons, which is 1690.7 fluid ounces.
Example 3: A 2 liter soda bottle
V(gal) = 2 ÷ 3.785411784 ≈ 0.5283 gal
A 2 liter bottle is 0.5283 gallons, or 67.63 US fluid ounces. A US gallon equals about 1.893 of those bottles.
Example 4: A cylindrical tank 1 m across and 1 m high
Its volume is π × 0.5² × 1 = 0.7854 cubic meters, and one cubic meter is 1000 liters, so the tank holds 785.4 L. In gallons:
V(gal) = 785.4 ÷ 3.785411784 ≈ 207.48 gal
Liters to gallons chart
| Liters (L) | US gallons (gal) | US fluid ounces (fl oz) |
|---|---|---|
| 0.5 L | 0.1321 gal | 16.91 fl oz |
| 1 L | 0.2642 gal | 33.81 fl oz |
| 2 L | 0.5283 gal | 67.63 fl oz |
| 3 L | 0.7925 gal | 101.44 fl oz |
| 4 L | 1.057 gal | 135.26 fl oz |
| 5 L | 1.321 gal | 169.07 fl oz |
| 10 L | 2.642 gal | 338.14 fl oz |
| 15 L | 3.963 gal | 507.21 fl oz |
| 20 L | 5.283 gal | 676.28 fl oz |
| 25 L | 6.604 gal | 845.35 fl oz |
| 30 L | 7.925 gal | 1014.42 fl oz |
| 40 L | 10.57 gal | 1352.56 fl oz |
| 50 L | 13.21 gal | 1690.7 fl oz |
| 60 L | 15.85 gal | 2028.84 fl oz |
| 75 L | 19.81 gal | 2536.05 fl oz |
| 100 L | 26.42 gal | 3381.4 fl oz |
Frequently asked questions
How many gallons are in a liter?
One liter is 0.2642 US gallons, or 33.81 US fluid ounces. In imperial gallons it is about 0.22.
How many liters are in a gallon?
A US gallon is 3.785 liters. Use the gallons to liters calculator to go the other way.
Is a US gallon the same as an imperial gallon?
No. A US gallon is 3.785 liters and an imperial gallon is 4.54609 liters. This matters for fuel economy figures from the UK, which are quoted per imperial gallon.
How do I convert liters per 100 km to miles per gallon?
Divide 235.215 by the liters per 100 km. For example, a car that uses 8 L/100 km does 29.4 US mpg. This page converts volume only, so use that rule for fuel economy.
Learn more
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