Convert UK gallon to US liquid gallon
Unit definitions
UK gallon
The UK gallon is a unit of volume equal to exactly $4.546\,09$ liters.
US liquid gallon
The US liquid gallon is a unit of volume equal to $231$ cubic inches.
How to convert UK gallon to US liquid gallon
$$\text{Volume}_{\text{gal (liquid) (us)}} = \text{Volume}_{\text{gal (uk)}} \cdot 1.200949925504854929674409234628198$$
Examples
Example 1
Convert $35.0\ \text{gal (uk)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 35.0 \cdot 1.200949925504854929674409234628198$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 42.033247$$
$$\therefore \ 35.0\ \text{gal (uk)} = 42.033247 \ \text{gal (liquid) (us)}$$
Example 2
Convert $85.0\ \text{gal (uk)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 85.0 \cdot 1.200949925504854929674409234628198$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 102.080744$$
$$\therefore \ 85.0\ \text{gal (uk)} = 102.080744 \ \text{gal (liquid) (us)}$$
Example 3
Convert $100.0\ \text{gal (uk)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 100.0 \cdot 1.200949925504854929674409234628198$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 120.094993$$
$$\therefore \ 100.0\ \text{gal (uk)} = 120.094993 \ \text{gal (liquid) (us)}$$
Example 4
Convert $140.0\ \text{gal (uk)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 140.0 \cdot 1.200949925504854929674409234628198$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 168.13299$$
$$\therefore \ 140.0\ \text{gal (uk)} = 168.13299 \ \text{gal (liquid) (us)}$$
Example 5
Convert $195.0\ \text{gal (uk)}$ to $\text{gal (liquid) (us)}$.
$$\text{Volume}_{\text{gal (liquid) (us)}} = 195.0 \cdot 1.200949925504854929674409234628198$$
$$\text{Volume}_{\text{gal (liquid) (us)}} = 234.185235$$
$$\therefore \ 195.0\ \text{gal (uk)} = 234.185235 \ \text{gal (liquid) (us)}$$