21 dry gallons in imperial cups

Conversion formula
How to convert 21 dry gallons to imperial cups?

We know (by definition) that: $1\mathrm{drygallon}\approx 15.5030235507348\mathrm{brcup}$

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: 21 ⁢ drygallon ≈ 325.5634945654308 ⁢ brcup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial cup is equal to 0.00307159745085923 times 21 dry gallons.

It can also be expressed as: 21 dry gallons is equal to $\frac{1}{\mathrm{0.00307159745085923}}$ imperial cups.

Approximation

An approximate numerical result would be: twenty-one dry gallons is about three hundred and twenty-five point five six imperial cups, or alternatively, a imperial cup is about zero times twenty-one dry gallons.