420 US customary cups in dry gallons

Conversion formula
How to convert 420 US customary cups to dry gallons?

We know (by definition) that: $1\mathrm{uscup}\approx 0.0537104379609565\mathrm{drygallon}$

We can set up a proportion to solve for the number of dry gallons.

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

Conclusion: 420 ⁢ uscup ≈ 22.55838394360173 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.0443294166151309 times 420 US customary cups.

It can also be expressed as: 420 US customary cups is equal to $\frac{1}{\mathrm{0.0443294166151309}}$ dry gallons.

Approximation

An approximate numerical result would be: four hundred and twenty US customary cups is about twenty-two point five five dry gallons, or alternatively, a dry gallon is about zero point zero four times four hundred and twenty US customary cups.