18 US dry barrels in imperial gallons
Result
The conversion result is: 18 US dry barrels is equivalent to 457.819406239648 imperial gallons.[1]
Conversion formula
How to convert 18 US dry barrels to imperial gallons?
We know (by definition) that: 1 drybarrel ≈ 25.4344114577582 imperialgallon.
We can set up a proportion to solve for the number of imperial gallons.
1 drybarrel / 18 drybarrel ≈ 25.4344114577582 imperialgallon / x imperialgallon
Now, we cross multiply to solve for our unknown x:
x imperialgallon ≈ (18 drybarrel / 1 drybarrel) * 25.4344114577582 imperialgallon → x imperialgallon ≈ 457.81940623964755 imperialgallon
Conclusion:
18 drybarrel ≈ 457.81940623964755 imperialgallon
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial gallon is equal to 0.00218426739096452 times 18 US dry barrels.
It can also be expressed as: 18 US dry barrels is equal to 1 / 0.00218426739096452 imperial gallons.
Approximation
An approximate numerical result would be: eighteen US dry barrels is about four hundred and fifty-seven point eight one imperial gallons, or alternatively, a imperial gallon is about zero times eighteen US dry barrels.
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.