18 imperial quarts in US gallons

Result

The conversion result is: 18 imperial quarts is equivalent to 5.40427466477185 US gallons.[1]

Conversion formula
How to convert 18 imperial quarts to US gallons?

We know (by definition) that: 1 imperialquart ≈ 0.300237481376214 usgallon.

We can set up a proportion to solve for the number of US gallons.

1 imperialquart / 18 imperialquart ≈ 0.300237481376214 usgallon / x usgallon

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

x usgallon ≈ (18 imperialquart / 1 imperialquart) * 0.300237481376214 usgallon → x usgallon ≈ 5.404274664771852 usgallon

Conclusion:

18 imperialquart ≈ 5.404274664771852 usgallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US gallon is equal to 0.185038707695331 times 18 imperial quarts.

It can also be expressed as: 18 imperial quarts is equal to 1 / 0.185038707695331 US gallons.

Approximation

An approximate numerical result would be: eighteen imperial quarts is about five point four zero US gallons, or alternatively, a US gallon is about zero point one nine times eighteen imperial 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.