Direct conversion
Convert gallon (UK) [gal UK] to liter [L] instantly with formula, examples, chart, and FAQs.
1 gallon (UK) [gal UK] = 4.54609 liter [L]
1 gallon (UK) [gal UK] = 4.54609 liter [L]
Example: 1 gallon (UK) [gal UK] equals 4.54609 liter [L].
Volume conversions use cubic metre as the reference unit. US liquid units, metric litres, and cubic units are converted with fixed factors stored in the unit table.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-08-14.
The gallon (UK) (gal UK) is a volume unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse gallon (UK) when comparing volume values, checking specifications, converting between systems, or preparing quick estimates.
The liter is a metric volume unit equal to one cubic decimeter, or 0.001 cubic meters.
HistoryThe liter became widely used with metric measurement because it is convenient for liquid and container volumes.
Current useLiters are used for beverages, fuel, tanks, laboratory liquids, cooking, and product packaging.
| gallon (UK) [gal UK] | liter [L] |
|---|---|
| 1 | 4.54609 |
| 2 | 9.09218 |
| 5 | 22.73045 |
| 10 | 45.4609 |
| 20 | 90.9218 |
| 25 | 113.65225 |
| 50 | 227.3045 |
| 100 | 454.609 |
| 1000 | 4546.09 |
Use this formula: 1 gallon (UK) [gal UK] = 4.54609 liter [L] Enter your value in the calculator and the result updates instantly.
1 gallon (UK) [gal UK] equals 4.54609 liter [L].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.