421 US gallons in imperial quarts
Result
The conversion result is: 421 US gallons is equivalent to 1402.22332691522 imperial quarts.[1]
Conversion formula
How to convert 421 US gallons to imperial quarts?
We know (by definition) that: 1 usgallon ≈ 3.33069673851596 imperialquart.
We can set up a proportion to solve for the number of imperial quarts.
1 usgallon / 421 usgallon ≈ 3.33069673851596 imperialquart / x imperialquart
Now, we cross multiply to solve for our unknown x:
x imperialquart ≈ (421 usgallon / 1 usgallon) * 3.33069673851596 imperialquart → x imperialquart ≈ 1402.223326915219 imperialquart
Conclusion:
421 usgallon ≈ 1402.223326915219 imperialquart
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial quart is equal to 0.000713153162413809 times 421 US gallons.
It can also be expressed as: 421 US gallons is equal to 1 / 0.000713153162413809 imperial quarts.
Approximation
An approximate numerical result would be: four hundred and twenty-one US gallons is about one thousand, four hundred and two point two two imperial quarts, or alternatively, a imperial quart is about zero times four hundred and twenty-one US gallons.
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.