80 US gallons in US dry barrels
Result
The conversion result is: 80 US gallons is equivalent to 2.61904761904762 US dry barrels.[1]
Conversion formula
How to convert 80 US gallons to US dry barrels?
We know (by definition) that: 1 usgallon ≈ 0.0327380952380952 drybarrel.
We can set up a proportion to solve for the number of US dry barrels.
1 usgallon / 80 usgallon ≈ 0.0327380952380952 drybarrel / x drybarrel
Now, we cross multiply to solve for our unknown x:
x drybarrel ≈ (80 usgallon / 1 usgallon) * 0.0327380952380952 drybarrel → x drybarrel ≈ 2.619047619047616 drybarrel
Conclusion:
80 usgallon ≈ 2.619047619047616 drybarrel

Conversion in the opposite direction
The inverse of the conversion factor is that 1 US dry barrel is equal to 0.381818181818182 times 80 US gallons.
It can also be expressed as: 80 US gallons is equal to 1 / 0.381818181818182 US dry barrels.
Approximation
An approximate numerical result would be: eighty US gallons is about two point six two US dry barrels, or alternatively, a US dry barrel is about zero point three eight times eighty 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.