128 imperial gallons in dry gallons

Conversion formula
How to convert 128 imperial gallons to dry gallons?

We know (by definition) that: $1\mathrm{imperialgallon}\approx 1.0320567434887\mathrm{drygallon}$

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: 128 ⁢ imperialgallon ≈ 132.1032631665536 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.00756983571813223 times 128 imperial gallons.

It can also be expressed as: 128 imperial gallons is equal to $\frac{1}{\mathrm{0.00756983571813223}}$ dry gallons.

Approximation

An approximate numerical result would be: one hundred and twenty-eight imperial gallons is about one hundred and thirty-two point zero nine dry gallons, or alternatively, a dry gallon is about zero point zero one times one hundred and twenty-eight imperial gallons.