Convert gallons to liters
1 gallon equals 3.78541 liters. To convert gallons to liters, multiply the number of gallons by 3.78541: for example, 10 gal is 37.8541 L. Ethical Tube's free gallons to liters converter does the math as you type, and the chart below lists common values.
1 gal = 3.78541 L
- 1 gal
- 3.78541 L
- 1 L
- 0.264172 gal
- Formula
- L = gal × 3.78541
- Measures
- Volume
- Price
- Free
- Works offline
- Yes
Conversion chart
gallons to liters chart
| Gallons (gal) | Liters (L) |
|---|---|
| 1 gal | 3.78541 L |
| 2 gal | 7.57082 L |
| 3 gal | 11.3562 L |
| 4 gal | 15.1416 L |
| 5 gal | 18.9271 L |
| 6 gal | 22.7125 L |
| 8 gal | 30.2833 L |
| 10 gal | 37.8541 L |
| 12 gal | 45.4249 L |
| 15 gal | 56.7812 L |
| 20 gal | 75.7082 L |
| 25 gal | 94.6353 L |
| 50 gal | 189.271 L |
| 100 gal | 378.541 L |
How it works
How to convert gallons to liters
Know the formula
L = gal × 3.78541. In words: multiply the number of gallons by 3.78541.
Work an example
10 gal → 37.8541 L. Round to two or three decimal places for everyday use.
Or type it in
Enter any value in the converter above and the answer appears instantly, in both directions.
Good to know
About volume units
- These are US customary measures: 1 US cup is 236.6 ml, 1 US fluid ounce is 29.57 ml, and 1 US gallon is 3.785 liters.
- UK (imperial) measures are different: an imperial fluid ounce is 28.41 ml and an imperial gallon is 4.546 liters.
- Nutrition labels in the US round a cup to 240 ml and a fluid ounce to 30 ml.
FAQ
Questions, answered
How many liters are in a gallon?
There are 3.78541 liters in 1 gallon. To convert gallons to liters, multiply the number of gallons by 3.78541.
What is 10 gallons in liters?
10 gallons is 37.8541 liters.
How do you convert liters back to gallons?
Multiply the number of liters by 0.264172. 1 liter is 0.264172 gallons.
Is this gallons to liters converter free?
Yes. It's free and works in any browser, even offline once the page has loaded. The answer updates as you type, and nothing you enter is sent anywhere.
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