21 US quarts in imperial quarts

Result

The conversion result is: 21 US quarts is equivalent to 17.4861578772088 imperial quarts.[1]

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

We know (by definition) that: 1 usquart ≈ 0.832674184628989 imperialquart.

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

1 usquart / 21 usquart ≈ 0.832674184628989 imperialquart / x imperialquart

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

x imperialquart ≈ (21 usquart / 1 usquart) * 0.832674184628989 imperialquart → x imperialquart ≈ 17.48615787720877 imperialquart

Conclusion:

21 usquart ≈ 17.48615787720877 imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.0571880916907074 times 21 US quarts.

It can also be expressed as: 21 US quarts is equal to 1 / 0.0571880916907074 imperial quarts.

Approximation

An approximate numerical result would be: twenty-one US quarts is about seventeen point four eight imperial quarts, or alternatively, a imperial 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.