420 imperial gallons in dry gallons

Conversion formula
How to convert 420 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: 420 ⁢ imperialgallon ≈ 433.463832265254 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.00230699755219268 times 420 imperial gallons.

It can also be expressed as: 420 imperial gallons is equal to $\frac{1}{\mathrm{0.00230699755219268}}$ dry gallons.

Approximation

An approximate numerical result would be: four hundred and twenty imperial gallons is about four hundred and thirty-three point four five dry gallons, or alternatively, a dry gallon is about zero times four hundred and twenty imperial gallons.