Convert US liquid gill to UK gallon
Unit definitions
US liquid gill
$4$ US fluid ounces are equal to $1$ US liquid gill.
UK gallon
The UK gallon is a unit of volume equal to exactly $4.546\,09$ liters.
How to convert US liquid gill to UK gallon
$$\text{Volume}_{\text{gal (uk)}} = \text{Volume}_{\text{liq.gi}} \cdot 0.02602106826965590210488573697397104$$
Examples
Example 1
Convert $30.0\ \text{liq.gi}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 30.0 \cdot 0.02602106826965590210488573697397104$$
$$\text{Volume}_{\text{gal (uk)}} = 0.780632$$
$$\therefore \ 30.0\ \text{liq.gi} = 0.780632 \ \text{gal (uk)}$$
Example 2
Convert $90.0\ \text{liq.gi}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 90.0 \cdot 0.02602106826965590210488573697397104$$
$$\text{Volume}_{\text{gal (uk)}} = 2.341896$$
$$\therefore \ 90.0\ \text{liq.gi} = 2.341896 \ \text{gal (uk)}$$
Example 3
Convert $115.0\ \text{liq.gi}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 115.0 \cdot 0.02602106826965590210488573697397104$$
$$\text{Volume}_{\text{gal (uk)}} = 2.992423$$
$$\therefore \ 115.0\ \text{liq.gi} = 2.992423 \ \text{gal (uk)}$$
Example 4
Convert $140.0\ \text{liq.gi}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 140.0 \cdot 0.02602106826965590210488573697397104$$
$$\text{Volume}_{\text{gal (uk)}} = 3.64295$$
$$\therefore \ 140.0\ \text{liq.gi} = 3.64295 \ \text{gal (uk)}$$
Example 5
Convert $175.0\ \text{liq.gi}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 175.0 \cdot 0.02602106826965590210488573697397104$$
$$\text{Volume}_{\text{gal (uk)}} = 4.553687$$
$$\therefore \ 175.0\ \text{liq.gi} = 4.553687 \ \text{gal (uk)}$$