640 imperial quarts in dry quarts

Conversion formula
How to convert 640 imperial quarts to dry quarts?

We know (by definition) that: $1\mathrm{imperialquart}\approx 1.0320567434887\mathrm{dryquart}$

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

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

Conclusion: 640 ⁢ imperialquart ≈ 660.516315832768 ⁢ dryquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry quart is equal to 0.00151396714362645 times 640 imperial quarts.

It can also be expressed as: 640 imperial quarts is equal to $\frac{1}{\mathrm{0.00151396714362645}}$ dry quarts.

Approximation

An approximate numerical result would be: six hundred and forty imperial quarts is about six hundred and sixty point five one dry quarts, or alternatively, a dry quart is about zero times six hundred and forty imperial quarts.