664 dry quarts in imperial quarts

Conversion formula
How to convert 664 dry quarts to imperial quarts?

We know (by definition) that: $1\mathrm{dryquart}\approx 0.968938971920925\mathrm{imperialquart}$

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: 664 ⁢ dryquart ≈ 643.3754773554942 ⁢ imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.00155430232453118 times 664 dry quarts.

It can also be expressed as: 664 dry quarts is equal to $\frac{1}{\mathrm{0.00155430232453118}}$ imperial quarts.

Approximation

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