Convert US Gallons to Imperial Gallons
Convert US gallons to imperial gallons instantly. Type a value below, check the formula and table, then see how the same gal (US) to gal (imp) conversion looks as a single line in Notes Calculator.
US Gallons to Imperial Gallons formula
One US gallon is 0.832674 imperial gallons, so gal (imp) = gal (US) × 0.832674. For the reverse, multiply imperial gallons by 1.20095, or use the Imperial Gallons to US Gallons converter.
US Gallons to Imperial Gallons conversion table
| US Gallons (gal (US)) | Imperial Gallons (gal (imp)) |
|---|---|
| 1 | 0.832674 |
| 2 | 1.66535 |
| 5 | 4.16337 |
| 10 | 8.32674 |
| 20 | 16.6535 |
| 25 | 20.8169 |
| 50 | 41.6337 |
| 100 | 83.2674 |
| 250 | 208.169 |
| 500 | 416.337 |
| 1,000 | 832.674 |
US Gallons to Imperial Gallons in Notes Calculator
Notes Calculator is a notepad that does math. Write 100 galUS to gallons on any line and the answer appears beside it. Change the number and the result follows. The same works with in and as, and with values stored in variables, so a whole estimate can mix US gallons and imperial gallons without a separate converter.
| Note | Result |
|---|---|
| 100 galUS to gallons | 83.27 gal |
| 100 galUS in gallons | 83.27 gal |
| 10 gallons as galUS | 12.01 galUS |
See the unit conversion docs for mixing units in one expression, or open the free web app and try it.
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FAQ
Frequently asked questions
- One US gallon equals 0.832674 imperial gallons. To convert US gallons to imperial gallons, multiply by 0.832674; to go back, multiply by 1.20095.
- Type the value, the unit, and the target unit on one line: 100 galUS to gallons. The keywords to, in, and as all work, and the result updates as you type. You can also keep the value in a variable and convert it later.
- Yes. The converter on this page is free, and Notes Calculator has a free plan for the web, Mac, Windows, Linux, and Android with the same unit conversions built in.
How many imperial gallons are in one US gallon?
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Convert US gallons to imperial gallons without leaving your notes.
Notes Calculator is free to start and runs in your browser. Units, currencies, percentages, and variables in one plain-text notepad.
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