1 US gallon in imperial cups

Conversion

1 US gallon is equivalent to 13.3227869540638 imperial cups.^[1]

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial cup is equal to 0.0750593703440534 times 1 US gallon.

It can also be expressed as: 1 US gallon is equal to $\frac{1}{0.0750593703440534}$ imperial cups.

Approximation

An approximate numerical result would be: one US gallon is about thirteen point three two imperial cups, or alternatively, a imperial cup is about zero point zero eight times one US gallon.

Units involved

This is how the units in this conversion are defined:

Us Gallons

"The US gallon is legally defined as 231 cubic inches, which is exactly 3.785411784 liters.[2][3] A US liquid gallon of water weighs about 8.34 pounds or 3.78 kilograms at 62 °F (17 °C), making it about 16.6% lighter than the imperial gallon. There are four quarts in a gallon, two pints in a quart and 16 US fluid ounces in a US pint, which makes the US fluid ounce equal to 1⁄128 of a US gallon."

Wikipedia page of US gallons

Imperial Cups

"The cup is a unit of measurement for volume, used in cooking to measure liquids (fluid measurement) and bulk foods such as granulated sugar (dry measurement). The imperial cup is half an imperial pint. It is no longer in common use, but many recipe books still include it."

Wikipedia page of imperial cups

Footnotes

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.