81 imperial cups in dry gallons

Conversion formula
How to convert 81 imperial cups to dry gallons?

We know (by definition) that: $1\mathrm{brcup}\approx 0.0645035464680438\mathrm{drygallon}$

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

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

Conclusion: 81 ⁢ brcup ≈ 5.224787263911547 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.191395352478207 times 81 imperial cups.

It can also be expressed as: 81 imperial cups is equal to $\frac{1}{\mathrm{0.191395352478207}}$ dry gallons.

Approximation

An approximate numerical result would be: eighty-one imperial cups is about five point two one dry gallons, or alternatively, a dry gallon is about zero point one nine times eighty-one imperial cups.