1 imperial gallon in US quarts

Conversion

1 imperial gallon is equivalent to 4.80379970201942 US quarts.^[1]

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US quart is equal to 0.208168546157247 times 1 imperial gallon.

It can also be expressed as: 1 imperial gallon is equal to $\frac{1}{0.208168546157247}$ US quarts.

Approximation

An approximate numerical result would be: one imperial gallon is about four point seven nine US quarts, or alternatively, a US quart is about zero point two one times one imperial gallon.

Units involved

This is how the units in this conversion are defined:

Imperial Gallons

"The imperial (UK) gallon, now defined as exactly 4.54609 litres (about 277.42 cubic inches), is used in some Commonwealth countries and was originally based on the volume of 10 pounds (approximately 4.54 kg) of water at 62 °F (17 °C). The imperial fluid ounce is defined as 1⁄160 of an imperial gallon; there are four quarts in a gallon, two pints in a quart, and 20 Imperial fluid ounces in an imperial pint."

Wikipedia page of imperial gallons

Us Quarts

"All traditional U.S. length and volume measures have been legally standardized for commerce by the international yard and pound agreement of 1959 using the definition of 1 yard being exactly equal to 0.9144 meter."

Wikipedia page of US quarts

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.