US Cup to US Gallon
Convert cup to gal instantly — free, no sign-up.
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About the US Cup (cup)
The US Cup is the standard US cooking measurement, equal to 8 US fluid ounces.
About the US Gallon (gal)
The US Gallon is the standard unit for fuel and liquid volume in the US — smaller than the UK gallon, so double-check which one a recipe or spec means.
How to convert cup to gal
- Enter the value in cup in the box above.
- The gal equivalent updates instantly.
- Use the swap button to convert gal back to cup just as easily.