Convert Fluid dram (US) to US teaspoon
Unit definitions
Fluid dram (US)
$60$ US minims are equal to $1$ US fluid dram.
US teaspoon
$80$ US minims are equal to $1$ US teaspoon.
How to convert Fluid dram (US) to US teaspoon
$$\text{Volume}_{\text{tsp (us)}} = \text{Volume}_{\text{fl dr}} \cdot 0.75$$
Examples
Example 1
Convert $30.0\ \text{fl dr}$ to $\text{tsp (us)}$.
$$\text{Volume}_{\text{tsp (us)}} = 30.0 \cdot 0.75$$
$$\text{Volume}_{\text{tsp (us)}} = 22.5$$
$$\therefore \ 30.0\ \text{fl dr} = 22.5 \ \text{tsp (us)}$$
Example 2
Convert $85.0\ \text{fl dr}$ to $\text{tsp (us)}$.
$$\text{Volume}_{\text{tsp (us)}} = 85.0 \cdot 0.75$$
$$\text{Volume}_{\text{tsp (us)}} = 63.75$$
$$\therefore \ 85.0\ \text{fl dr} = 63.75 \ \text{tsp (us)}$$
Example 3
Convert $100.0\ \text{fl dr}$ to $\text{tsp (us)}$.
$$\text{Volume}_{\text{tsp (us)}} = 100.0 \cdot 0.75$$
$$\text{Volume}_{\text{tsp (us)}} = 75$$
$$\therefore \ 100.0\ \text{fl dr} = 75 \ \text{tsp (us)}$$
Example 4
Convert $140.0\ \text{fl dr}$ to $\text{tsp (us)}$.
$$\text{Volume}_{\text{tsp (us)}} = 140.0 \cdot 0.75$$
$$\text{Volume}_{\text{tsp (us)}} = 105$$
$$\therefore \ 140.0\ \text{fl dr} = 105 \ \text{tsp (us)}$$
Example 5
Convert $200.0\ \text{fl dr}$ to $\text{tsp (us)}$.
$$\text{Volume}_{\text{tsp (us)}} = 200.0 \cdot 0.75$$
$$\text{Volume}_{\text{tsp (us)}} = 150$$
$$\therefore \ 200.0\ \text{fl dr} = 150 \ \text{tsp (us)}$$