Convert Imperial Gallons to US Gallons
Convert imperial gallons to US gallons instantly. Type a value below, check the formula and table, then see how the same gal (imp) to gal (US) conversion looks as a single line in Notes Calculator.
Imperial Gallons to US Gallons formula
One imperial gallon is 1.20095 US gallons, so gal (US) = gal (imp) × 1.20095. For the reverse, multiply US gallons by 0.832674, or use the US Gallons to Imperial Gallons converter.
Imperial Gallons to US Gallons conversion table
| Imperial Gallons (gal (imp)) | US Gallons (gal (US)) |
|---|---|
| 1 | 1.20095 |
| 2 | 2.4019 |
| 5 | 6.00475 |
| 10 | 12.0095 |
| 20 | 24.019 |
| 25 | 30.0237 |
| 50 | 60.0475 |
| 100 | 120.095 |
| 250 | 300.237 |
| 500 | 600.475 |
| 1,000 | 1,200.95 |
Imperial Gallons to US Gallons in Notes Calculator
Notes Calculator is a notepad that does math. Write 100 gallons to galUS 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 imperial gallons and US gallons without a separate converter.
| Note | Result |
|---|---|
| 100 gallons to galUS | 120.09 galUS |
| 100 gallons in galUS | 120.09 galUS |
| 10 galUS as gallons | 8.33 gal |
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 imperial gallon equals 1.20095 US gallons. To convert imperial gallons to US gallons, multiply by 1.20095; to go back, multiply by 0.832674.
- Type the value, the unit, and the target unit on one line: 100 gallons to galUS. 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 US gallons are in one imperial gallon?
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Convert imperial gallons to US 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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