US Gallons to UK Gallons Converter
Type a value in US gallons to see it in UK gallons. It works both ways: type in the UK gallons box to convert back.
Formula
To convert US gallons to UK gallons, divide by 1.200949926 (the same as multiplying by 0.8326741846).
1 US gal = 0.832674184629 UK gal and 1 UK gal = 1.2009499255 US gal.
US gallons to UK gallons table
| US gallons | UK gallons |
|---|---|
| 1 US gal | 0.8326742 UK gal |
| 2 US gal | 1.665348 UK gal |
| 3 US gal | 2.498023 UK gal |
| 5 US gal | 4.163371 UK gal |
| 10 US gal | 8.326742 UK gal |
| 12 US gal | 9.99209 UK gal |
| 15 US gal | 12.49011 UK gal |
| 20 US gal | 16.65348 UK gal |
| 50 US gal | 41.63371 UK gal |
| 100 US gal | 83.26742 UK gal |
Worked examples
2 US gal in UK gallons
2 US gal
1.665348 UK gal
2 × 0.8326741846 = 1.665348369
12 US gal in UK gallons
12 US gal
9.99209 UK gal
12 × 0.8326741846 = 9.992090216
50 US gal in UK gallons
50 US gal
41.63371 UK gal
50 × 0.8326741846 = 41.63370923
About US Gallons to UK Gallons Converter
This converter turns US gallons into UK gallons as you type, and works the other way too: type in the UK gallons box to convert back. To convert US gallons to UK gallons, divide by 1.200949926 (the same as multiplying by 0.8326741846). For example, 2 US gal is 1.665348 UK gal, and 12 US gal is 9.99209 UK 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 US Gallons to UK Gallons Converter
- Type the amount in US gallons in the first box.
- Read the answer in UK gallons in the second box and in the result line below.
- To convert the other way, type in the UK gallons box instead, or use the swap button to open the UK gallons to US gallons page.
- Choose a number of decimal places if you need a rounded figure, then copy the result line.
Common uses
- Following a recipe from another country
- Working out a drink size or a bottle size
- Comparing fuel economy or tank sizes
- Converting fuel, paint or liquid quantities
Frequently asked questions
How many UK gallons are in one US gallon?
There are 0.8326741846 UK gallons in one US gallon. This figure is exact, because both units have fixed definitions.
How do I convert US gallons to UK gallons?
To convert US gallons to UK gallons, divide by 1.200949926 (the same as multiplying by 0.8326741846). For example, 50 US gal is 41.63371 UK gal.
How do I convert UK gallons to US gallons?
Going the other way, multiply by 1.200949926. The UK gallons to US gallons converter does this for you.
What is 15 US gal in UK gallons?
15 US gal is 12.49011 UK 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.