Convert US pint to UK pint
Unit definitions
US pint
$4$ US liquid gills are equal to $1$ US pint.
UK pint
$4$ UK gills are equal to $1$ UK pint.
How to convert US pint to UK pint
$$\text{Volume}_{\text{pt (uk)}} = \text{Volume}_{\text{pt (us)}} \cdot 0.8326741846289888673563435831670732$$
Examples
Example 1
Convert $30.0\ \text{pt (us)}$ to $\text{pt (uk)}$.
$$\text{Volume}_{\text{pt (uk)}} = 30.0 \cdot 0.8326741846289888673563435831670732$$
$$\text{Volume}_{\text{pt (uk)}} = 24.980226$$
$$\therefore \ 30.0\ \text{pt (us)} = 24.980226 \ \text{pt (uk)}$$
Example 2
Convert $65.0\ \text{pt (us)}$ to $\text{pt (uk)}$.
$$\text{Volume}_{\text{pt (uk)}} = 65.0 \cdot 0.8326741846289888673563435831670732$$
$$\text{Volume}_{\text{pt (uk)}} = 54.123822$$
$$\therefore \ 65.0\ \text{pt (us)} = 54.123822 \ \text{pt (uk)}$$
Example 3
Convert $100.0\ \text{pt (us)}$ to $\text{pt (uk)}$.
$$\text{Volume}_{\text{pt (uk)}} = 100.0 \cdot 0.8326741846289888673563435831670732$$
$$\text{Volume}_{\text{pt (uk)}} = 83.267418$$
$$\therefore \ 100.0\ \text{pt (us)} = 83.267418 \ \text{pt (uk)}$$
Example 4
Convert $145.0\ \text{pt (us)}$ to $\text{pt (uk)}$.
$$\text{Volume}_{\text{pt (uk)}} = 145.0 \cdot 0.8326741846289888673563435831670732$$
$$\text{Volume}_{\text{pt (uk)}} = 120.737757$$
$$\therefore \ 145.0\ \text{pt (us)} = 120.737757 \ \text{pt (uk)}$$
Example 5
Convert $200.0\ \text{pt (us)}$ to $\text{pt (uk)}$.
$$\text{Volume}_{\text{pt (uk)}} = 200.0 \cdot 0.8326741846289888673563435831670732$$
$$\text{Volume}_{\text{pt (uk)}} = 166.534837$$
$$\therefore \ 200.0\ \text{pt (us)} = 166.534837 \ \text{pt (uk)}$$