400 US customary cups in dry gallons

Conversion formula
How to convert 400 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: 400 ⁢ uscup ≈ 21.4841751843826 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.0465458874458874 times 400 US customary cups.

It can also be expressed as: 400 US customary cups is equal to $\frac{1}{\mathrm{0.0465458874458874}}$ dry gallons.

Approximation

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