UK Gallons to US Gallons Calculator
Convert UK (Imperial) gallons to US gallons instantly with the formula.
Result
1.2009 Gallons (US)
Formula
Result = Value × (Gallons (UK) Factor ÷ Gallons (US) Factor)
Examples
1 Gallons (UK) = 1.2009 Gallons (US)
5 Gallons (UK) = 6.0047 Gallons (US)
10 Gallons (UK) = 12.0095 Gallons (US)
100 Gallons (UK) = 120.09 Gallons (US)
US vs. UK (Imperial) Gallons, Quarts & Pints
A US gallon and a UK (Imperial) gallon aren't the same size — the UK gallon is about 20% larger, at 4.546 liters versus 3.785 liters for the US gallon. That gap carries through to quarts and pints too, since they're just fixed fractions of a gallon in both systems. This trips people up most often with fuel economy (miles per gallon means something different in the US vs the UK) and with older British recipes or product measurements.
Frequently Asked Questions
How many gallons (us) is 1 gallons (uk)?
1 Gallons (UK) equals 1.2009 Gallons (US).
What is the conversion factor between gallons (uk) and gallons (us)?
1 Gallons (UK) equals 1.2009 gallons (us).
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