420 US gallons in imperial cups
Result
The conversion result is: 420 US gallons is equivalent to 5595.5705207068 imperial cups.[1]
Conversion formula
How to convert 420 US gallons to imperial cups?
We know (by definition) that: 1 usgallon ≈ 13.3227869540638 brcup.
We can set up a proportion to solve for the number of imperial cups.
1 usgallon / 420 usgallon ≈ 13.3227869540638 brcup / x brcup
Now, we cross multiply to solve for our unknown x:
x brcup ≈ (420 usgallon / 1 usgallon) * 13.3227869540638 brcup → x brcup ≈ 5595.570520706796 brcup
Conclusion:
420 usgallon ≈ 5595.570520706796 brcup
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial cup is equal to 0.000178712786533461 times 420 US gallons.
It can also be expressed as: 420 US gallons is equal to 1 / 0.000178712786533461 imperial cups.
Approximation
An approximate numerical result would be: four hundred and twenty US gallons is about five thousand, five hundred and ninety-five point five six imperial cups, or alternatively, a imperial cup is about zero times four hundred and twenty 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.