21 US customary cups in imperial quarts

Result

The conversion result is: 21 US customary cups is equivalent to 4.37153946930219 imperial quarts.[1]

Conversion formula
How to convert 21 US customary cups to imperial quarts?

We know (by definition) that: 1 uscup ≈ 0.208168546157247 imperialquart.

We can set up a proportion to solve for the number of imperial quarts.

1 uscup / 21 uscup ≈ 0.208168546157247 imperialquart / x imperialquart

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

x imperialquart ≈ (21 uscup / 1 uscup) * 0.208168546157247 imperialquart → x imperialquart ≈ 4.371539469302187 imperialquart

Conclusion:

21 uscup ≈ 4.371539469302187 imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.22875236676283 times 21 US customary cups.

It can also be expressed as: 21 US customary cups is equal to 1 / 0.22875236676283 imperial quarts.

Approximation

An approximate numerical result would be: twenty-one US customary cups is about four point three seven imperial quarts, or alternatively, a imperial quart is about zero point two three times twenty-one US customary cups.

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.