Convert gallons (uk) to litres in an instant. One UK gallon is about 4.546 litres. Enter any value above and the answer updates as you type — free, accurate and with no sign-up.
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Frequently asked questions
How do I convert gallons (uk) to litres?
Multiply the number of UK gallons by 4.546. This tool does it automatically as you type.
Is the result accurate?
Yes — it uses the internationally recognised conversion factor, rounded for a clean display.