Convert Fluid dram (US) to UK gallon
Unit definitions
Fluid dram (US)
$60$ US minims are equal to $1$ US fluid dram.
UK gallon
The UK gallon is a unit of volume equal to exactly $4.546\,09$ liters.
How to convert Fluid dram (US) to UK gallon
$$\text{Volume}_{\text{gal (uk)}} = \text{Volume}_{\text{fl dr}} \cdot 0.0008131583844578527921796532844708310$$
Examples
Example 1
Convert $50.0\ \text{fl dr}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 50.0 \cdot 0.0008131583844578527921796532844708310$$
$$\text{Volume}_{\text{gal (uk)}} = 0.040658$$
$$\therefore \ 50.0\ \text{fl dr} = 0.040658 \ \text{gal (uk)}$$
Example 2
Convert $85.0\ \text{fl dr}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 85.0 \cdot 0.0008131583844578527921796532844708310$$
$$\text{Volume}_{\text{gal (uk)}} = 0.069118$$
$$\therefore \ 85.0\ \text{fl dr} = 0.069118 \ \text{gal (uk)}$$
Example 3
Convert $105.0\ \text{fl dr}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 105.0 \cdot 0.0008131583844578527921796532844708310$$
$$\text{Volume}_{\text{gal (uk)}} = 0.085382$$
$$\therefore \ 105.0\ \text{fl dr} = 0.085382 \ \text{gal (uk)}$$
Example 4
Convert $150.0\ \text{fl dr}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 150.0 \cdot 0.0008131583844578527921796532844708310$$
$$\text{Volume}_{\text{gal (uk)}} = 0.121974$$
$$\therefore \ 150.0\ \text{fl dr} = 0.121974 \ \text{gal (uk)}$$
Example 5
Convert $200.0\ \text{fl dr}$ to $\text{gal (uk)}$.
$$\text{Volume}_{\text{gal (uk)}} = 200.0 \cdot 0.0008131583844578527921796532844708310$$
$$\text{Volume}_{\text{gal (uk)}} = 0.162632$$
$$\therefore \ 200.0\ \text{fl dr} = 0.162632 \ \text{gal (uk)}$$