521 imperial cups in US customary cups

Conversion formula
How to convert 521 imperial cups to US customary cups?

We know (by definition) that: $1\mathrm{brcup}\approx 1.20094992550486\mathrm{uscup}$

We can set up a proportion to solve for the number of US customary cups.

Now, we cross multiply to solve for our unknown $x$:

Conclusion: 521 ⁢ brcup ≈ 625.694911188032 ⁢ uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.00159822300312666 times 521 imperial cups.

It can also be expressed as: 521 imperial cups is equal to $\frac{1}{\mathrm{0.00159822300312666}}$ US customary cups.

Approximation

An approximate numerical result would be: five hundred and twenty-one imperial cups is about six hundred and twenty-five point six nine US customary cups, or alternatively, a US customary cup is about zero times five hundred and twenty-one imperial cups.