Convert US teaspoon to US cup
Unit definitions
US teaspoon
$80$ US minims are equal to $1$ US teaspoon.
US cup
The US cup is equal to $8$ US fluid ounces.
How to convert US teaspoon to US cup
$$\text{Volume}_{\text{cup (us)}} = \text{Volume}_{\text{tsp (us)}} \cdot 0.02083333335975053856914817487132333$$
Examples
Example 1
Convert $40.0\ \text{tsp (us)}$ to $\text{cup (us)}$.
$$\text{Volume}_{\text{cup (us)}} = 40.0 \cdot 0.02083333335975053856914817487132333$$
$$\text{Volume}_{\text{cup (us)}} = 0.833333$$
$$\therefore \ 40.0\ \text{tsp (us)} = 0.833333 \ \text{cup (us)}$$
Example 2
Convert $75.0\ \text{tsp (us)}$ to $\text{cup (us)}$.
$$\text{Volume}_{\text{cup (us)}} = 75.0 \cdot 0.02083333335975053856914817487132333$$
$$\text{Volume}_{\text{cup (us)}} = 1.5625$$
$$\therefore \ 75.0\ \text{tsp (us)} = 1.5625 \ \text{cup (us)}$$
Example 3
Convert $110.0\ \text{tsp (us)}$ to $\text{cup (us)}$.
$$\text{Volume}_{\text{cup (us)}} = 110.0 \cdot 0.02083333335975053856914817487132333$$
$$\text{Volume}_{\text{cup (us)}} = 2.291667$$
$$\therefore \ 110.0\ \text{tsp (us)} = 2.291667 \ \text{cup (us)}$$
Example 4
Convert $140.0\ \text{tsp (us)}$ to $\text{cup (us)}$.
$$\text{Volume}_{\text{cup (us)}} = 140.0 \cdot 0.02083333335975053856914817487132333$$
$$\text{Volume}_{\text{cup (us)}} = 2.916667$$
$$\therefore \ 140.0\ \text{tsp (us)} = 2.916667 \ \text{cup (us)}$$
Example 5
Convert $190.0\ \text{tsp (us)}$ to $\text{cup (us)}$.
$$\text{Volume}_{\text{cup (us)}} = 190.0 \cdot 0.02083333335975053856914817487132333$$
$$\text{Volume}_{\text{cup (us)}} = 3.958333$$
$$\therefore \ 190.0\ \text{tsp (us)} = 3.958333 \ \text{cup (us)}$$