642 US customary cups in imperial cups
Result
The conversion result is: 642 US customary cups is equivalent to 534.576826531811 imperial cups.[1]
Conversion formula
How to convert 642 US customary cups to imperial cups?
We know (by definition) that: 1 uscup ≈ 0.832674184628989 brcup.
We can set up a proportion to solve for the number of imperial cups.
1 uscup / 642 uscup ≈ 0.832674184628989 brcup / x brcup
Now, we cross multiply to solve for our unknown x:
x brcup ≈ (642 uscup / 1 uscup) * 0.832674184628989 brcup → x brcup ≈ 534.576826531811 brcup
Conclusion:
642 uscup ≈ 534.576826531811 brcup
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial cup is equal to 0.00187063851324744 times 642 US customary cups.
It can also be expressed as: 642 US customary cups is equal to 1 / 0.00187063851324744 imperial cups.
Approximation
An approximate numerical result would be: six hundred and forty-two US customary cups is about five hundred and thirty-four point five eight imperial cups, or alternatively, a imperial cup is about zero times six hundred and forty-two US customary 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.