640 imperial pints in US dry barrels

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

We know (by definition) that: $1\mathrm{imperialpint}\approx 0.00491460162967017\mathrm{drybarrel}$

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 ⁢ imperialpint ≈ 3.145345042988909 ⁢ drybarrel

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US dry barrel is equal to 0.317930143221977 times 640 imperial pints.

It can also be expressed as: 640 imperial pints is equal to $\frac{1}{\mathrm{0.317930143221977}}$ US dry barrels.

Approximation

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