Convert US teaspoon to UK fluid ounce
Unit definitions
US teaspoon
$80$ US minims are equal to $1$ US teaspoon.
UK fluid ounce
$\frac{1}{160}$ of a UK gallon is a UK fluid ounce.
How to convert US teaspoon to UK fluid ounce
$$\text{Volume}_{\text{oz (uk)}} = \text{Volume}_{\text{tsp (us)}} \cdot 0.1734737886843419289983260340204439$$
Examples
Example 1
Convert $35.0\ \text{tsp (us)}$ to $\text{oz (uk)}$.
$$\text{Volume}_{\text{oz (uk)}} = 35.0 \cdot 0.1734737886843419289983260340204439$$
$$\text{Volume}_{\text{oz (uk)}} = 6.071583$$
$$\therefore \ 35.0\ \text{tsp (us)} = 6.071583 \ \text{oz (uk)}$$
Example 2
Convert $60.0\ \text{tsp (us)}$ to $\text{oz (uk)}$.
$$\text{Volume}_{\text{oz (uk)}} = 60.0 \cdot 0.1734737886843419289983260340204439$$
$$\text{Volume}_{\text{oz (uk)}} = 10.408427$$
$$\therefore \ 60.0\ \text{tsp (us)} = 10.408427 \ \text{oz (uk)}$$
Example 3
Convert $115.0\ \text{tsp (us)}$ to $\text{oz (uk)}$.
$$\text{Volume}_{\text{oz (uk)}} = 115.0 \cdot 0.1734737886843419289983260340204439$$
$$\text{Volume}_{\text{oz (uk)}} = 19.949486$$
$$\therefore \ 115.0\ \text{tsp (us)} = 19.949486 \ \text{oz (uk)}$$
Example 4
Convert $145.0\ \text{tsp (us)}$ to $\text{oz (uk)}$.
$$\text{Volume}_{\text{oz (uk)}} = 145.0 \cdot 0.1734737886843419289983260340204439$$
$$\text{Volume}_{\text{oz (uk)}} = 25.153699$$
$$\therefore \ 145.0\ \text{tsp (us)} = 25.153699 \ \text{oz (uk)}$$
Example 5
Convert $170.0\ \text{tsp (us)}$ to $\text{oz (uk)}$.
$$\text{Volume}_{\text{oz (uk)}} = 170.0 \cdot 0.1734737886843419289983260340204439$$
$$\text{Volume}_{\text{oz (uk)}} = 29.490544$$
$$\therefore \ 170.0\ \text{tsp (us)} = 29.490544 \ \text{oz (uk)}$$