640 imperial cups in US dry barrels

Conversion formula
How to convert 640 imperial cups to US dry barrels?

We know (by definition) that: $1\mathrm{brcup}\approx 0.00245730081483508\mathrm{drybarrel}$

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

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

Conclusion: 640 ⁢ brcup ≈ 1.5726725214944512 ⁢ drybarrel

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US dry barrel is equal to 0.635860286443955 times 640 imperial cups.

It can also be expressed as: 640 imperial cups is equal to $\frac{1}{\mathrm{0.635860286443955}}$ US dry barrels.

Approximation

An approximate numerical result would be: six hundred and forty imperial cups is about one point five seven US dry barrels, or alternatively, a US dry barrel is about zero point six four times six hundred and forty imperial cups.