Converting US liquid gallons (gal) to liters (L) is common at fuel pumps, in brewing, and when reading metric equipment specs. One US gallon equals exactly 3.785411784 liters, so liters = US gallons × 3.785411784.
L = US gal × 3.785411784
Multiply the volume in US liquid gallons by 3.785411784 to get liters. This factor is exact—not UK imperial gallons, which are larger.
| us gallon | liter |
|---|---|
| 1 | 3.785 |
| 2 | 7.57 |
| 5 | 18.925 |
| 10 | 37.85 |
| 25 | 94.625 |
| 50 | 189.25 |
| 100 | 378.5 |
You pump 5 US gallons of gasoline. How many liters is that on a metric receipt?
5 US gallons equals approximately 18.93 liters.
One US Gallon (US gal) equals 3.785 Liters (L)
Units of volume are standardized measurements used to quantify container capacity, fluid storage, and system sizing in engineering, manufacturing, and logistics.
One Liter (L) equals 0.264201 US Gallon (US gal)
Units of volume are standardized measurements used to quantify container capacity, fluid storage, and system sizing in engineering, manufacturing, and logistics.
How many liters are in a US gallon?
One US liquid gallon equals exactly 3.785411784 liters. Multiply US gallons by that factor.
How do I convert 2 gallons to liters?
2 × 3.785411784 ≈ 7.57 L.
Is this US or UK gallons?
This page uses US liquid gallons. UK imperial gallons equal about 4.546 liters each.
Need more pair pages?
Browse all Convert Volume Units Online conversion pages