21 liters in imperial quarts

Conversion formula
How to convert 21 liters to imperial quarts?

We know (by definition) that: $1\mathrm{liter}\approx 0.879876993196351\mathrm{imperialquart}$

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

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

Conclusion: 21 ⁢ liter ≈ 18.477416857123373 ⁢ imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.054120119047619 times 21 liters.

It can also be expressed as: 21 liters is equal to $\frac{1}{\mathrm{0.054120119047619}}$ imperial quarts.

Approximation

An approximate numerical result would be: twenty-one liters is about eighteen point four eight imperial quarts, or alternatively, a imperial quart is about zero point zero five times twenty-one liters.