21 US gallons in dry quarts

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

We know (by definition) that: $1\mathrm{usgallon}\approx 3.43746802950121\mathrm{dryquart}$

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

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

Conclusion: 21 ⁢ usgallon ≈ 72.18682861952541 ⁢ dryquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry quart is equal to 0.0138529426922284 times 21 US gallons.

It can also be expressed as: 21 US gallons is equal to $\frac{1}{\mathrm{0.0138529426922284}}$ dry quarts.

Approximation

An approximate numerical result would be: twenty-one US gallons is about seventy-two point one eight dry quarts, or alternatively, a dry quart is about zero point zero one times twenty-one US gallons.