18 US gallons in dry gallons
Result
The conversion result is: 18 US gallons is equivalent to 15.4686061327555 dry gallons.[1]
Conversion formula
How to convert 18 US gallons to dry gallons?
We know (by definition) that: 1 usgallon ≈ 0.859367007375303 drygallon.
We can set up a proportion to solve for the number of dry gallons.
1 usgallon / 18 usgallon ≈ 0.859367007375303 drygallon / x drygallon
Now, we cross multiply to solve for our unknown x:
x drygallon ≈ (18 usgallon / 1 usgallon) * 0.859367007375303 drygallon → x drygallon ≈ 15.468606132755454 drygallon
Conclusion:
18 usgallon ≈ 15.468606132755454 drygallon
Conversion in the opposite direction
The inverse of the conversion factor is that 1 dry gallon is equal to 0.0646470658970659 times 18 US gallons.
It can also be expressed as: 18 US gallons is equal to 1 / 0.0646470658970659 dry gallons.
Approximation
An approximate numerical result would be: eighteen US gallons is about fifteen point four seven dry gallons, or alternatively, a dry gallon is about zero point zero six times eighteen US gallons.
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.