UK Gallons to US Gallons Converter
Type a value in UK gallons to see it in US gallons. It works both ways: type in the US gallons box to convert back.
Formula
To convert UK gallons to US gallons, multiply by 1.200949926.
1 UK gal = 1.2009499255 US gal and 1 US gal = 0.832674184629 UK gal.
UK gallons to US gallons table
| UK gallons | US gallons |
|---|---|
| 1 UK gal | 1.20095 US gal |
| 2 UK gal | 2.4019 US gal |
| 3 UK gal | 3.60285 US gal |
| 5 UK gal | 6.00475 US gal |
| 10 UK gal | 12.0095 US gal |
| 12 UK gal | 14.4114 US gal |
| 15 UK gal | 18.01425 US gal |
| 20 UK gal | 24.019 US gal |
| 50 UK gal | 60.0475 US gal |
| 100 UK gal | 120.095 US gal |
Worked examples
2 UK gal in US gallons
2 UK gal
2.4019 US gal
2 × 1.200949926 = 2.401899851
12 UK gal in US gallons
12 UK gal
14.4114 US gal
12 × 1.200949926 = 14.41139911
50 UK gal in US gallons
50 UK gal
60.0475 US gal
50 × 1.200949926 = 60.04749628
About UK Gallons to US Gallons Converter
This converter turns UK gallons into US gallons as you type, and works the other way too: type in the US gallons box to convert back. To convert UK gallons to US gallons, multiply by 1.200949926. For example, 2 UK gal is 2.4019 US gal, and 12 UK gal is 14.4114 US gal.
Volume conversions are easy to get wrong because UK and US gallons, pints and fluid ounces are different sizes. Each page here says which system it uses. Both units have exact definitions, so the converter gives an exact result, rounded only for display. Use the table below for common values, or set the decimal places to round the answer for a form or a label.
How to use UK Gallons to US Gallons Converter
- Type the amount in UK gallons in the first box.
- Read the answer in US gallons in the second box and in the result line below.
- To convert the other way, type in the US gallons box instead, or use the swap button to open the US gallons to UK gallons page.
- Choose a number of decimal places if you need a rounded figure, then copy the result line.
Common uses
- Converting fuel, paint or liquid quantities
- Following a recipe from another country
- Working out a drink size or a bottle size
- Comparing fuel economy or tank sizes
Frequently asked questions
How many US gallons are in one UK gallon?
There are 1.200949926 US gallons in one UK gallon. This figure is exact, because both units have fixed definitions.
How do I convert UK gallons to US gallons?
To convert UK gallons to US gallons, multiply by 1.200949926. For example, 50 UK gal is 60.0475 US gal.
How do I convert US gallons to UK gallons?
Going the other way, divide by 1.200949926 (the same as multiplying by 0.8326741846). The US gallons to UK gallons converter does this for you.
What is 15 UK gal in US gallons?
15 UK gal is 18.01425 US gal.
How much bigger is a UK gallon?
A UK gallon is about 4.546 litres and a US gallon is about 3.785 litres, so the UK gallon is about 20% larger. One UK gallon is about 1.2 US gallons.