351 imperial cups in US customary cups

Conversion formula
How to convert 351 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: 351 ⁢ brcup ≈ 421.53342385220583 ⁢ uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.00237229112429911 times 351 imperial cups.

It can also be expressed as: 351 imperial cups is equal to $\frac{1}{\mathrm{0.00237229112429911}}$ US customary cups.

Approximation

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