Imperial Gallon to Litre
Free instant imperial gallon to litre converter. 1 gal = 4.54609 L.
Common Imperial Gallon to Litre values
| Imperial Gallon (gal) | Litre (L) |
|---|---|
| 1 | 4.54609 |
| 5 | 22.7305 |
| 10 | 45.4609 |
| 25 | 113.652 |
| 50 | 227.305 |
| 100 | 454.609 |
| 500 | 2273.05 |
| 1000 | 4546.09 |
How does Imperial Gallon to Litre conversion work?
Type a value in the Imperial 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.
Imperial Gallon. The UK and Commonwealth gallon. About 4.546 litres — 20% bigger than the US gallon.
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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