01
Length Converter
Converts between 15 length and distance units instantly, showing the exact conversion factor…
UK gallon to US gallon Converter
Converts uk gallon to us gallon instantly. One uk gallon equals 1.2009499255 us gallon. Includes a reference table and the reverse conversion.
Converters
Nothing uploaded
No sign-up
Free, unlimited
Enter a value to convert.
In short
One uk gallon equals 1.2009499255 us gallon. To convert uk gallon to us gallon, multiply by 1.2009499255. To go the other way, multiply us gallon by 0.8326741846. So 5 uk gallon is 6.0047496275 us gallon, 10 is 12.009499255 and 100 is 120.0949925505. Both units measure volume and capacity, so the conversion is a single exact multiplication with no offset — the same factor works in a spreadsheet or in code.
How to use the UK gallon to US gallon Converter
- Type the value you want to convert.
- Pick the unit you are converting from and the unit you want.
- The converted value and the exact conversion factor are shown instantly.
About the UK gallon to US gallon Converter
The UK gallon to US gallon Converter converts uk gallon to us gallon instantly. One uk gallon equals 1.2009499255 us gallon. Includes a reference table and the reverse conversion. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Converting a single uk gallon figure without opening a spreadsheet.
- Checking a specification written in uk gallon against equipment rated in us gallon.
- Getting the factor itself so you can reuse it in a formula.
Details
| 1 UK gallon | 1.2009499255 US gallon |
|---|---|
| 1 US gallon | 0.8326741846 UK gallon |
| Conversion type | Exact multiplication — no offset needed |
| Measures | Volume and capacity |
The maths behind it
This tool uses us gallon = uk gallon × 1.2009499255, because both units are defined against the Litre. Every intermediate value is shown on screen, so the result can be checked by hand.
Frequently asked questions
Is the UK gallon to US gallon Converter free?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Is the UK gallon to US gallon Converter safe to use with private information?
No. The UK gallon to US gallon Converter runs entirely in your browser using JavaScript. Nothing is transmitted, logged or stored, which you can verify yourself in the Network tab of your browser's developer tools.
How is the result calculated?
It uses us gallon = uk gallon × 1.2009499255, because both units are defined against the Litre. The full working is printed under the result, so you can follow every step rather than trusting a black box.
What do I get if I try it?
Enter 10 uk gallon and the UK gallon to US gallon Converter returns 12.009499255 us gallon.
When would I actually need the UK gallon to US gallon Converter?
The jobs it is built for: converting a single uk gallon figure without opening a spreadsheet. Checking a specification written in uk gallon against equipment rated in us gallon. Getting the factor itself so you can reuse it in a formula. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
Which values should I know?
1 UK gallon is 1.2009499255 US gallon. 1 US gallon is 0.8326741846 UK gallon. Conversion type is Exact multiplication — no offset needed. These are printed on the page itself, so you do not have to take them on trust.
How precise is the result?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.
Related converters tools
All 107902
Weight Converter
Converts between 21 weight and mass units instantly, showing the exact conversion factor and a…
03
Area Converter
Converts between 25 area units instantly, showing the exact conversion factor and a full…
04
Volume Converter
Converts between 21 volume and capacity units instantly, showing the exact conversion factor…
05
Speed Converter
Converts between 7 speed and velocity units instantly, showing the exact conversion factor and…
06
Time Converter
Converts between 11 time units instantly, showing the exact conversion factor and a full…
07
Digital Storage Converter
Converts between 11 digital storage units instantly, showing the exact conversion factor and a…
08
Pressure Converter
Converts between 10 pressure units instantly, showing the exact conversion factor and a full…
09
Energy Converter
Converts between 11 energy and work units instantly, showing the exact conversion factor and a…
10
Power Converter
Converts between 7 power units instantly, showing the exact conversion factor and a full…