Convert US liquid gallon to US fluid ounce
Unit definitions
US liquid gallon
The US liquid gallon is a unit of volume equal to $231$ cubic inches.
US fluid ounce
$\frac{1}{128}$ of a US liquid gallon is a US fluid ounce.
How to convert US liquid gallon to US fluid ounce
$$\text{Volume}_{\text{oz (us)}} = \text{Volume}_{\text{gal (liquid) (us)}} \cdot 128$$
Examples
Example 1
Convert $45.0\ \text{gal (liquid) (us)}$ to $\text{oz (us)}$.
$$\text{Volume}_{\text{oz (us)}} = 45.0 \cdot 128$$
$$\text{Volume}_{\text{oz (us)}} = 5760$$
$$\therefore \ 45.0\ \text{gal (liquid) (us)} = 5760 \ \text{oz (us)}$$
Example 2
Convert $70.0\ \text{gal (liquid) (us)}$ to $\text{oz (us)}$.
$$\text{Volume}_{\text{oz (us)}} = 70.0 \cdot 128$$
$$\text{Volume}_{\text{oz (us)}} = 8960$$
$$\therefore \ 70.0\ \text{gal (liquid) (us)} = 8960 \ \text{oz (us)}$$
Example 3
Convert $100.0\ \text{gal (liquid) (us)}$ to $\text{oz (us)}$.
$$\text{Volume}_{\text{oz (us)}} = 100.0 \cdot 128$$
$$\text{Volume}_{\text{oz (us)}} = 12800$$
$$\therefore \ 100.0\ \text{gal (liquid) (us)} = 12800 \ \text{oz (us)}$$
Example 4
Convert $140.0\ \text{gal (liquid) (us)}$ to $\text{oz (us)}$.
$$\text{Volume}_{\text{oz (us)}} = 140.0 \cdot 128$$
$$\text{Volume}_{\text{oz (us)}} = 17920$$
$$\therefore \ 140.0\ \text{gal (liquid) (us)} = 17920 \ \text{oz (us)}$$
Example 5
Convert $185.0\ \text{gal (liquid) (us)}$ to $\text{oz (us)}$.
$$\text{Volume}_{\text{oz (us)}} = 185.0 \cdot 128$$
$$\text{Volume}_{\text{oz (us)}} = 23680$$
$$\therefore \ 185.0\ \text{gal (liquid) (us)} = 23680 \ \text{oz (us)}$$