421 US quarts in imperial gallons
Result
The conversion result is: 421 US quarts is equivalent to 87.6389579322011 imperial gallons.[1]
Conversion formula
How to convert 421 US quarts to imperial gallons?
We know (by definition) that: 1 usquart ≈ 0.208168546157247 imperialgallon.
We can set up a proportion to solve for the number of imperial gallons.
1 usquart / 421 usquart ≈ 0.208168546157247 imperialgallon / x imperialgallon
Now, we cross multiply to solve for our unknown x:
x imperialgallon ≈ (421 usquart / 1 usquart) * 0.208168546157247 imperialgallon → x imperialgallon ≈ 87.638957932201 imperialgallon
Conclusion:
421 usquart ≈ 87.638957932201 imperialgallon
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 0.011410450598621 times 421 US quarts.
It can also be expressed as: 421 US quarts is equal to 1 / 0.011410450598621 imperial gallons.
Approximation
An approximate numerical result would be: four hundred and twenty-one US quarts is about eighty-seven point six four imperial gallons, or alternatively, a imperial gallon is about zero point zero one times four hundred and twenty-one 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.