20 imperial gallons in imperial quarts

Conversion formula
How to convert 20 imperial gallons to imperial quarts?

We know (by definition) that: $1\mathrm{imperialgallon}\approx 4\mathrm{imperialquart}$

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: 20 ⁢ imperialgallon ≈ 80 ⁢ imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.0125 times 20 imperial gallons.

It can also be expressed as: 20 imperial gallons is equal to $\frac{1}{\mathrm{0.0125}}$ imperial quarts.

Approximation

An approximate numerical result would be: twenty imperial gallons is about zero imperial quarts, or alternatively, a imperial quart is about zero point zero one times twenty imperial gallons.