US gallons to liters (gal to l)
The answer, the exact formula and a table with the values people look up most.
1 gal = 3.78541 l1 l = 0.264172 galLiters = US gallons × 3.785411784Example: 5 gal = 18.9271 l
1 gal US = 3.785411784 l
Conversions people ask for most
Convert US gallons to liters
| gal | l |
|---|---|
| 0.5 gal | 1.8927 l |
| 1 gal | 3.7854 l |
| 2 gal | 7.5708 l |
| 3 gal | 11.356 l |
| 4 gal | 15.142 l |
| 5 gal | 18.927 l |
| 10 gal | 37.854 l |
| 15 gal | 56.781 l |
| 20 gal | 75.708 l |
| 50 gal | 189.27 l |
| 100 gal | 378.54 l |
The factor is exact: it comes from the official definition of the units. The table rounds to a few decimals; the converter above gives up to 10 significant digits.
The two units
US gallon gal
The US gallon is exactly 3.785411784 liters; the UK (imperial) gallon is larger, 4.54609 liters.
Liter l
A liter is one cubic decimeter (1,000 cm³); a liter of water weighs about one kilogram.
Frequently asked questions
How many liters are 5 US gallons?
5 gal = 18.9271 l.
What is the formula to convert US gallons to liters?
Liters = US gallons × 3.785411784. 5 gal = 18.9271 l.
Is this conversion exact?
Yes. The factor comes from the international definition of both units, so the only difference you may see is rounding.
More conversions
- Liters → US gallons
- Milliliters → US fluid ounces
- US fluid ounces → milliliters
- Centimeters → inches
- Inches → centimeters
- Millimeters → inches
- Inches → millimeters
- Meters → feet
- Feet → meters
- Feet → centimeters
- Centimeters → feet
- Kilometers → miles
- Miles → kilometers
- Meters → yards
- Yards → meters
- Kilograms → pounds