Convert US teaspoon to Cubic inch
Unit definitions
US teaspoon
$80$ US minims are equal to $1$ US teaspoon.
Cubic inch
The cubic inch is the volume of a cube with edges exactly $1$ inch in length.
How to convert US teaspoon to Cubic inch
$$\text{Volume}_{\text{in³}} = \text{Volume}_{\text{tsp (us)}} \cdot 0.3007812503813984005920767747047305$$
Examples
Example 1
Convert $20.0\ \text{tsp (us)}$ to $\text{in³}$.
$$\text{Volume}_{\text{in³}} = 20.0 \cdot 0.3007812503813984005920767747047305$$
$$\text{Volume}_{\text{in³}} = 6.015625$$
$$\therefore \ 20.0\ \text{tsp (us)} = 6.015625 \ \text{in³}$$
Example 2
Convert $60.0\ \text{tsp (us)}$ to $\text{in³}$.
$$\text{Volume}_{\text{in³}} = 60.0 \cdot 0.3007812503813984005920767747047305$$
$$\text{Volume}_{\text{in³}} = 18.046875$$
$$\therefore \ 60.0\ \text{tsp (us)} = 18.046875 \ \text{in³}$$
Example 3
Convert $115.0\ \text{tsp (us)}$ to $\text{in³}$.
$$\text{Volume}_{\text{in³}} = 115.0 \cdot 0.3007812503813984005920767747047305$$
$$\text{Volume}_{\text{in³}} = 34.589844$$
$$\therefore \ 115.0\ \text{tsp (us)} = 34.589844 \ \text{in³}$$
Example 4
Convert $135.0\ \text{tsp (us)}$ to $\text{in³}$.
$$\text{Volume}_{\text{in³}} = 135.0 \cdot 0.3007812503813984005920767747047305$$
$$\text{Volume}_{\text{in³}} = 40.605469$$
$$\therefore \ 135.0\ \text{tsp (us)} = 40.605469 \ \text{in³}$$
Example 5
Convert $180.0\ \text{tsp (us)}$ to $\text{in³}$.
$$\text{Volume}_{\text{in³}} = 180.0 \cdot 0.3007812503813984005920767747047305$$
$$\text{Volume}_{\text{in³}} = 54.140625$$
$$\therefore \ 180.0\ \text{tsp (us)} = 54.140625 \ \text{in³}$$