21 dry quarts in US gallons
Result
The conversion result is: 21 dry quarts is equivalent to 6.10914772727273 US gallons.[1]
Conversion formula
How to convert 21 dry quarts to US gallons?
We know (by definition) that: 1 dryquart ≈ 0.290911796536797 usgallon.
We can set up a proportion to solve for the number of US gallons.
1 dryquart / 21 dryquart ≈ 0.290911796536797 usgallon / x usgallon
Now, we cross multiply to solve for our unknown x:
x usgallon ≈ (21 dryquart / 1 dryquart) * 0.290911796536797 usgallon → x usgallon ≈ 6.109147727272737 usgallon
Conclusion:
21 dryquart ≈ 6.109147727272737 usgallon
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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 1 / 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.
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.