18 imperial gallons in US customary cups

Conversion formula
How to convert 18 imperial gallons to US customary cups?

We know (by definition) that: $1\mathrm{imperialgallon}\approx 19.2151988080777\mathrm{uscup}$

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

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

Conclusion: 18 ⁢ imperialgallon ≈ 345.87357854539863 ⁢ uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.00289122980773954 times 18 imperial gallons.

It can also be expressed as: 18 imperial gallons is equal to $\frac{1}{\mathrm{0.00289122980773954}}$ US customary cups.

Approximation

An approximate numerical result would be: eighteen imperial gallons is about three hundred and forty-five point eight seven US customary cups, or alternatively, a US customary cup is about zero times eighteen imperial gallons.