Gallons to Liters Converter
1 gallon = 3.785412 liters
Type a value in either box: the conversion between gallons (gal) and liters (L) updates instantly.
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Good to know
Fuel is priced per gallon in the US and per liter in most other countries. A 15-gallon tank holds about 56.8 liters.
How to convert gallons to liters
To convert gallons to liters, multiply the number of gallons by 3.785412. To go the other way, multiply liters by 0.2641721.
L = gal × 3.785412
Worked examples
- 1 gal = 3.785412 L
- 5 gal = 18.92706 L
- 10 gal = 37.85412 L
- 15 gal = 56.78118 L
Gallons to Liters conversion table
| Gallons (gal) | Liters (L) |
|---|---|
| 1 gal | 3.785412 L |
| 2 gal | 7.570824 L |
| 3 gal | 11.35624 L |
| 4 gal | 15.14165 L |
| 5 gal | 18.92706 L |
| 6 gal | 22.71247 L |
| 7 gal | 26.49788 L |
| 8 gal | 30.28329 L |
| 9 gal | 34.06871 L |
| 10 gal | 37.85412 L |
| 15 gal | 56.78118 L |
| 20 gal | 75.70824 L |
| 25 gal | 94.63529 L |
| 30 gal | 113.5624 L |
| 40 gal | 151.4165 L |
| 50 gal | 189.2706 L |
| 75 gal | 283.9059 L |
| 100 gal | 378.5412 L |
| 250 gal | 946.3529 L |
| 500 gal | 1,892.706 L |
| 1,000 gal | 3,785.412 L |
About the units
Gallons (gal)
The US liquid gallon (gal) is exactly 3.785411784 liters. The UK imperial gallon is larger: 4.54609 liters.
Liters (L)
The liter (L) is a metric unit of volume equal to 1,000 milliliters or one cubic decimeter.
Frequently asked questions
How do I convert gallons to liters?
To convert gallons to liters, multiply the number of gallons by 3.785412. To go the other way, multiply liters by 0.2641721.
L = gal × 3.785412What is 5 gal in liters?
5 gal equals 18.92706 L.
How many liters are in a gallon?
There are 3.785412 liters in a gallon.
How many gallons are in a liter?
There are 0.2641721 gallons in a liter.
Conversion factors use exact international definitions where they exist (for example 1 inch = 2.54 cm and 1 lb = 0.45359237 kg). Results are rounded for display only.