21 US quarts in dry gallons

Result

The conversion result is: 21 US quarts is equivalent to 4.51167678872034 dry gallons.[1]

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

We know (by definition) that: 1 usquart ≈ 0.214841751843826 drygallon.

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

1 usquart / 21 usquart ≈ 0.214841751843826 drygallon / x drygallon

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

x drygallon ≈ (21 usquart / 1 usquart) * 0.214841751843826 drygallon → x drygallon ≈ 4.511676788720346 drygallon

Conclusion:

21 usquart ≈ 4.511676788720346 drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.221647083075655 times 21 US quarts.

It can also be expressed as: 21 US quarts is equal to 1 / 0.221647083075655 dry gallons.

Approximation

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

Footnotes

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.