21 US quarts in dry quarts
Result
The conversion result is: 21 US quarts is equivalent to 18.0467071548814 dry quarts.[1]
Conversion formula
How to convert 21 US quarts to dry quarts?
We know (by definition) that: 1 usquart ≈ 0.859367007375303 dryquart.
We can set up a proportion to solve for the number of dry quarts.
1 usquart / 21 usquart ≈ 0.859367007375303 dryquart / x dryquart
Now, we cross multiply to solve for our unknown x:
x dryquart ≈ (21 usquart / 1 usquart) * 0.859367007375303 dryquart → x dryquart ≈ 18.046707154881364 dryquart
Conclusion:
21 usquart ≈ 18.046707154881364 dryquart
Conversion in the opposite direction
The inverse of the conversion factor is that 1 dry quart is equal to 0.0554117707689136 times 21 US quarts.
It can also be expressed as: 21 US quarts is equal to 1 / 0.0554117707689136 dry quarts.
Approximation
An approximate numerical result would be: twenty-one US quarts is about eighteen point zero five dry quarts, or alternatively, a dry quart is about zero point zero six 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.