503 imperial cups in imperial gallons
Result
The conversion result is: 503 imperial cups is equivalent to 31.4375 imperial gallons.[1]
Conversion formula
How to convert 503 imperial cups to imperial gallons?
We know (by definition) that: 1 brcup ≈ 0.0625 imperialgallon.
We can set up a proportion to solve for the number of imperial gallons.
1 brcup / 503 brcup ≈ 0.0625 imperialgallon / x imperialgallon
Now, we cross multiply to solve for our unknown x:
x imperialgallon ≈ (503 brcup / 1 brcup) * 0.0625 imperialgallon → x imperialgallon ≈ 31.4375 imperialgallon
Conclusion:
503 brcup ≈ 31.4375 imperialgallon

Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 0.0318091451292246 times 503 imperial cups.
It can also be expressed as: 503 imperial cups is equal to 1 / 0.0318091451292246 imperial gallons.
Approximation
An approximate numerical result would be: five hundred and three imperial cups is about thirty-one point four four imperial gallons, or alternatively, a imperial gallon is about zero point zero three times five hundred and three imperial 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.