US Gallon to Litre
Free instant us gallon to litre converter. 1 gal = 3.78541 L.
Common US Gallon to Litre values
| US Gallon (gal) | Litre (L) |
|---|---|
| 1 | 3.78541 |
| 5 | 18.9271 |
| 10 | 37.8541 |
| 25 | 94.6353 |
| 50 | 189.271 |
| 100 | 378.541 |
| 500 | 1892.71 |
| 1000 | 3785.41 |
How does US Gallon to Litre conversion work?
Type a value in the US Gallon (gal) field and the equivalent in Litre (L) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
US Gallon. The standard fuel and milk unit in the US. About 3.785 litres.
Litre. The metric volume unit. About 1.06 US quarts; the volume of a 1 kg block of water.
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Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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