Convert US liquid gallon to US oil barrel
Unit definitions
US liquid gallon
The US liquid gallon is a unit of volume equal to $231$ cubic inches.
US oil barrel
The US oil barrel is defined as exactly $42$ US liquid gallons. It is used for measuring crude oil and other petroleum products.
How to convert US liquid gallon to US oil barrel
$$\text{Volume}_{\text{bbl (oil)}} = \frac{\text{Volume}_{\text{gal (liquid) (us)}}}{42}$$
Examples
Example 1
Convert $25.0\ \text{gal (liquid) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = \frac{25.0}{42}$$
$$\text{Volume}_{\text{bbl (oil)}} = 0.595238$$
$$\therefore \ 25.0\ \text{gal (liquid) (us)} = 0.595238 \ \text{bbl (oil)}$$
Example 2
Convert $90.0\ \text{gal (liquid) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = \frac{90.0}{42}$$
$$\text{Volume}_{\text{bbl (oil)}} = 2.142857$$
$$\therefore \ 90.0\ \text{gal (liquid) (us)} = 2.142857 \ \text{bbl (oil)}$$
Example 3
Convert $100.0\ \text{gal (liquid) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = \frac{100.0}{42}$$
$$\text{Volume}_{\text{bbl (oil)}} = 2.380952$$
$$\therefore \ 100.0\ \text{gal (liquid) (us)} = 2.380952 \ \text{bbl (oil)}$$
Example 4
Convert $145.0\ \text{gal (liquid) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = \frac{145.0}{42}$$
$$\text{Volume}_{\text{bbl (oil)}} = 3.452381$$
$$\therefore \ 145.0\ \text{gal (liquid) (us)} = 3.452381 \ \text{bbl (oil)}$$
Example 5
Convert $165.0\ \text{gal (liquid) (us)}$ to $\text{bbl (oil)}$.
$$\text{Volume}_{\text{bbl (oil)}} = \frac{165.0}{42}$$
$$\text{Volume}_{\text{bbl (oil)}} = 3.928571$$
$$\therefore \ 165.0\ \text{gal (liquid) (us)} = 3.928571 \ \text{bbl (oil)}$$