420 US customary cups in imperial quarts

Conversion formula
How to convert 420 US customary cups to imperial quarts?

We know (by definition) that: $1\mathrm{uscup}\approx 0.208168546157247\mathrm{imperialquart}$

We can set up a proportion to solve for the number of imperial quarts.

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

Conclusion: 420 ⁢ uscup ≈ 87.43078938604374 ⁢ imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.0114376183381415 times 420 US customary cups.

It can also be expressed as: 420 US customary cups is equal to $\frac{1}{\mathrm{0.0114376183381415}}$ imperial quarts.

Approximation

An approximate numerical result would be: four hundred and twenty US customary cups is about eighty-seven point four three imperial quarts, or alternatively, a imperial quart is about zero point zero one times four hundred and twenty US customary cups.