15 US gallons in imperial quarts

Conversion formula
How to convert 15 US gallons to imperial quarts?

We know (by definition) that: $1\mathrm{usgallon}\approx 3.33069673851596\mathrm{imperialquart}$

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: 15 ⁢ usgallon ≈ 49.9604510777394 ⁢ imperialquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial quart is equal to 0.0200158320917476 times 15 US gallons.

It can also be expressed as: 15 US gallons is equal to $\frac{1}{\mathrm{0.0200158320917476}}$ imperial quarts.

Approximation

An approximate numerical result would be: fifteen US gallons is about forty-nine point nine six imperial quarts, or alternatively, a imperial quart is about zero point zero two times fifteen US gallons.