821 US customary cups in imperial gallons
Result
The conversion result is: 821 US customary cups is equivalent to 42.726594098775 imperial gallons.[1]
Conversion formula
How to convert 821 US customary cups to imperial gallons?
We know (by definition) that: 1 uscup ≈ 0.0520421365393118 imperialgallon.
We can set up a proportion to solve for the number of imperial gallons.
1 uscup / 821 uscup ≈ 0.0520421365393118 imperialgallon / x imperialgallon
Now, we cross multiply to solve for our unknown x:
x imperialgallon ≈ (821 uscup / 1 uscup) * 0.0520421365393118 imperialgallon → x imperialgallon ≈ 42.72659409877499 imperialgallon
Conclusion:
821 uscup ≈ 42.72659409877499 imperialgallon
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 0.0234046270500337 times 821 US customary cups.
It can also be expressed as: 821 US customary cups is equal to 1 / 0.0234046270500337 imperial gallons.
Approximation
An approximate numerical result would be: eight hundred and twenty-one US customary cups is about forty-two point seven two imperial gallons, or alternatively, a imperial gallon is about zero point zero two times eight hundred and twenty-one 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.