221 imperial cups in US gallons
Result
The conversion result is: 221 imperial cups is equivalent to 16.5881208460358 US gallons.[1]
Conversion formula
How to convert 221 imperial cups to US gallons?
We know (by definition) that: 1 brcup ≈ 0.0750593703440534 usgallon.
We can set up a proportion to solve for the number of US gallons.
1 brcup / 221 brcup ≈ 0.0750593703440534 usgallon / x usgallon
Now, we cross multiply to solve for our unknown x:
x usgallon ≈ (221 brcup / 1 brcup) * 0.0750593703440534 usgallon → x usgallon ≈ 16.5881208460358 usgallon
Conclusion:
221 brcup ≈ 16.5881208460358 usgallon
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US gallon is equal to 0.0602841038645422 times 221 imperial cups.
It can also be expressed as: 221 imperial cups is equal to 1 / 0.0602841038645422 US gallons.
Approximation
An approximate numerical result would be: two hundred and twenty-one imperial cups is about sixteen point five eight US gallons, or alternatively, a US gallon is about zero point zero six times two hundred and twenty-one 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.