Convert US oil barrel to US liquid gallon
Unit definitions
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.
US liquid gallon
The US liquid gallon is a unit of volume equal to $231$ cubic inches.
How to convert US oil barrel to US liquid gallon
$$\text{Volume}_{\text{gal (liquid) (us)}} = \text{Volume}_{\text{bbl (oil)}} \cdot 42$$
Examples
Example 1
Convert $30.0\ \text{bbl (oil)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 30.0 \cdot 42$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 1260$$
$$\therefore \ 30.0\ \text{bbl (oil)} = 1260 \ \text{gal (liquid) (us)}$$
Example 2
Convert $60.0\ \text{bbl (oil)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 60.0 \cdot 42$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 2520$$
$$\therefore \ 60.0\ \text{bbl (oil)} = 2520 \ \text{gal (liquid) (us)}$$
Example 3
Convert $120.0\ \text{bbl (oil)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 120.0 \cdot 42$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 5040$$
$$\therefore \ 120.0\ \text{bbl (oil)} = 5040 \ \text{gal (liquid) (us)}$$
Example 4
Convert $140.0\ \text{bbl (oil)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 140.0 \cdot 42$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 5880$$
$$\therefore \ 140.0\ \text{bbl (oil)} = 5880 \ \text{gal (liquid) (us)}$$
Example 5
Convert $170.0\ \text{bbl (oil)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 170.0 \cdot 42$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 7140$$
$$\therefore \ 170.0\ \text{bbl (oil)} = 7140 \ \text{gal (liquid) (us)}$$