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Imperial gallon to US cup
Convert Imperial gallon to US cup and get the exact value instantly.
About this conversion
To convert Imperial gallon to US cup, multiply the number of Imperial gallon by 19.21519881.
Volume units divide between metric (liters, milliliters) and US customary (gallons, cups, fluid ounces), which trips up cooking, fuel figures and container sizing until you convert them.
Conversion table
| Imperial gallon (imp gal) | US cup (cup) |
|---|---|
| 1 imp gal | 19.21519881 cup |
| 2 imp gal | 38.43039762 cup |
| 5 imp gal | 96.07599404 cup |
| 10 imp gal | 192.1519881 cup |
| 100 imp gal | 1921.519881 cup |
How to use this converter
- Enter your Imperial gallon value
Type any number into the Imperial gallon field. It starts at 1 so you can read the rate straight away.
- Read the US cup result
The amount in US cup updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many US cup are in one Imperial gallon?
- One Imperial gallon equals 19.21519881 cup. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Imperial gallon to US cup conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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