21 dry quarts in US gallons

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

We know (by definition) that: $1\mathrm{dryquart}\approx 0.290911796536797\mathrm{usgallon}$

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

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

Conclusion: 21 ⁢ dryquart ≈ 6.109147727272737 ⁢ usgallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US gallon is equal to 0.163688953785772 times 21 dry quarts.

It can also be expressed as: 21 dry quarts is equal to $\frac{1}{\mathrm{0.163688953785772}}$ US gallons.

Approximation

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