664 imperial cups in dry gallons

Conversion formula
How to convert 664 imperial cups to dry gallons?

We know (by definition) that: $1\mathrm{brcup}\approx 0.0645035464680438\mathrm{drygallon}$

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: 664 ⁢ brcup ≈ 42.83035485478108 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.0233479270342392 times 664 imperial cups.

It can also be expressed as: 664 imperial cups is equal to $\frac{1}{\mathrm{0.0233479270342392}}$ dry gallons.

Approximation

An approximate numerical result would be: six hundred and sixty-four imperial cups is about forty-two point eight two dry gallons, or alternatively, a dry gallon is about zero point zero two times six hundred and sixty-four imperial cups.