How to convert 12 US gallons to US dry barrels?
We know (by definition) that:
We can set up a proportion to solve for the number of US dry barrels.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US dry barrel is equal to 2.54545454545455 times 12 US gallons.
It can also be expressed as: 12 US gallons is equal to US dry barrels.
An approximate numerical result would be: twelve US gallons is about zero point three nine US dry barrels, or alternatively, a US dry barrel is about two point five four times twelve US gallons.
 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.