644 US gallons in imperial cups

Conversion formula
How to convert 644 US gallons to imperial cups?

We know (by definition) that: $1\mathrm{usgallon}\approx 13.3227869540638\mathrm{brcup}$

We can set up a proportion to solve for the number of imperial cups.

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

Conclusion: 644 ⁢ usgallon ≈ 8579.874798417086 ⁢ brcup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial cup is equal to 0.000116551817304431 times 644 US gallons.

It can also be expressed as: 644 US gallons is equal to $\frac{1}{\mathrm{0.000116551817304431}}$ imperial cups.

Approximation

An approximate numerical result would be: six hundred and forty-four US gallons is about eight thousand, five hundred and seventy-nine point eight seven imperial cups, or alternatively, a imperial cup is about zero times six hundred and forty-four US gallons.