21 liters in dry gallons

Conversion formula
How to convert 21 liters to dry gallons?

We know (by definition) that: $1\mathrm{liter}\approx 0.227020746067214\mathrm{drygallon}$

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 ⁢ liter ≈ 4.767435667411494 ⁢ drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.209756370040952 times 21 liters.

It can also be expressed as: 21 liters is equal to $\frac{1}{\mathrm{0.209756370040952}}$ dry gallons.

Approximation

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