Convert Cubic inch to US liquid gallon
Unit definitions
Cubic inch
The cubic inch is the volume of a cube with edges exactly $1$ inch in length.
US liquid gallon
The US liquid gallon is a unit of volume equal to $231$ cubic inches.
How to convert Cubic inch to US liquid gallon
$$\text{Volume}_{\text{gal (liquid) (us)}} = \frac{\text{Volume}_{\text{in³}}}{231}$$
Examples
Example 1
Convert $50.0\ \text{in³}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = \frac{50.0}{231}$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 0.21645$$
$$\therefore \ 50.0\ \text{in³} = 0.21645 \ \text{gal (liquid) (us)}$$
Example 2
Convert $65.0\ \text{in³}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = \frac{65.0}{231}$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 0.281385$$
$$\therefore \ 65.0\ \text{in³} = 0.281385 \ \text{gal (liquid) (us)}$$
Example 3
Convert $105.0\ \text{in³}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = \frac{105.0}{231}$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 0.454545$$
$$\therefore \ 105.0\ \text{in³} = 0.454545 \ \text{gal (liquid) (us)}$$
Example 4
Convert $150.0\ \text{in³}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = \frac{150.0}{231}$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 0.649351$$
$$\therefore \ 150.0\ \text{in³} = 0.649351 \ \text{gal (liquid) (us)}$$
Example 5
Convert $175.0\ \text{in³}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = \frac{175.0}{231}$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 0.757576$$
$$\therefore \ 175.0\ \text{in³} = 0.757576 \ \text{gal (liquid) (us)}$$