821 US customary teaspoons in dry quarts
Result
The conversion result is: 821 US customary teaspoons is equivalent to 3.67468913049544 dry quarts.[1]
Conversion formula
How to convert 821 US customary teaspoons to dry quarts?
We know (by definition) that: 1 usteaspoon ≈ 0.00447586983007971 dryquart.
We can set up a proportion to solve for the number of dry quarts.
1 usteaspoon / 821 usteaspoon ≈ 0.00447586983007971 dryquart / x dryquart
Now, we cross multiply to solve for our unknown x:
x dryquart ≈ (821 usteaspoon / 1 usteaspoon) * 0.00447586983007971 dryquart → x dryquart ≈ 3.674689130495442 dryquart
Conclusion:
821 usteaspoon ≈ 3.674689130495442 dryquart

Conversion in the opposite direction
The inverse of the conversion factor is that 1 dry quart is equal to 0.272131863264628 times 821 US customary teaspoons.
It can also be expressed as: 821 US customary teaspoons is equal to 1 / 0.272131863264628 dry quarts.
Approximation
An approximate numerical result would be: eight hundred and twenty-one US customary teaspoons is about three point six seven dry quarts, or alternatively, a dry quart is about zero point two seven times eight hundred and twenty-one US customary teaspoons.
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.