389 US customary cups in imperial gallons
Conversion
389 US customary cups is equivalent to 20.2443911137923 imperial gallons.[1]
Conversion formula
How to convert 389 US customary cups to imperial gallons?
We know (by definition) that:
We can set up a proportion to solve for the number of imperial gallons.
Now, we cross multiply to solve for our unknown :
Conclusion:
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 0.04939639796421 times 389 US customary cups.
It can also be expressed as: 389 US customary cups is equal to imperial gallons.
Approximation
An approximate numerical result would be: three hundred and eighty-nine US customary cups is about twenty point two three imperial gallons, or alternatively, a imperial gallon is about zero point zero five times three hundred and eighty-nine US customary 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.