Convert US liquid gallon to US beer barrel
Unit definitions
US liquid gallon
The US liquid gallon is a unit of volume equal to $231$ cubic inches.
US beer barrel
The US beer barrel is defined as exactly $31$ US liquid gallons.
How to convert US liquid gallon to US beer barrel
$$\text{Volume}_{\text{bbl (beer)}} = \frac{\text{Volume}_{\text{gal (liquid) (us)}}}{31}$$
Examples
Example 1
Convert $50.0\ \text{gal (liquid) (us)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = \frac{50.0}{31}$$
$$\text{Volume}_{\text{bbl (beer)}} = 1.612903$$
$$\therefore \ 50.0\ \text{gal (liquid) (us)} = 1.612903 \ \text{bbl (beer)}$$
Example 2
Convert $80.0\ \text{gal (liquid) (us)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = \frac{80.0}{31}$$
$$\text{Volume}_{\text{bbl (beer)}} = 2.580645$$
$$\therefore \ 80.0\ \text{gal (liquid) (us)} = 2.580645 \ \text{bbl (beer)}$$
Example 3
Convert $105.0\ \text{gal (liquid) (us)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = \frac{105.0}{31}$$
$$\text{Volume}_{\text{bbl (beer)}} = 3.387097$$
$$\therefore \ 105.0\ \text{gal (liquid) (us)} = 3.387097 \ \text{bbl (beer)}$$
Example 4
Convert $130.0\ \text{gal (liquid) (us)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = \frac{130.0}{31}$$
$$\text{Volume}_{\text{bbl (beer)}} = 4.193548$$
$$\therefore \ 130.0\ \text{gal (liquid) (us)} = 4.193548 \ \text{bbl (beer)}$$
Example 5
Convert $195.0\ \text{gal (liquid) (us)}$ to $\text{bbl (beer)}$.
$$\text{Volume}_{\text{bbl (beer)}} = \frac{195.0}{31}$$
$$\text{Volume}_{\text{bbl (beer)}} = 6.290323$$
$$\therefore \ 195.0\ \text{gal (liquid) (us)} = 6.290323 \ \text{bbl (beer)}$$