21 imperial quarts in dry gallons

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

We know (by definition) that: $1\mathrm{imperialquart}\approx 0.258014185872175\mathrm{drygallon}$

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: 21 ⁢ imperialquart ≈ 5.4182979033156755 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.184559804175414 times 21 imperial quarts.

It can also be expressed as: 21 imperial quarts is equal to $\frac{1}{\mathrm{0.184559804175414}}$ dry gallons.

Approximation

An approximate numerical result would be: twenty-one imperial quarts is about five point four one dry gallons, or alternatively, a dry gallon is about zero point one eight times twenty-one imperial quarts.