Convert Point to Em
Unit definitions
Point
The length of a point is equal to $0.013\,837$ inches.
Em
An em is a unit of typography equal to the point size of the font, commonly $12$ points or $\frac{1}{6}$ of an inch.
How to convert Point to Em
$$\text{Length}_{\text{em}} = \frac{\text{Length}_{\text{pt}}}{12}$$
Examples
Example 1
Convert $50.0\ \text{pt}$ to $\text{em}$.
$$\text{Length}_{\text{em}} = \frac{50.0}{12}$$
$$\text{Length}_{\text{em}} = 4.166667$$
$$\therefore \ 50.0\ \text{pt} = 4.166667 \ \text{em}$$
Example 2
Convert $90.0\ \text{pt}$ to $\text{em}$.
$$\text{Length}_{\text{em}} = \frac{90.0}{12}$$
$$\text{Length}_{\text{em}} = 7.5$$
$$\therefore \ 90.0\ \text{pt} = 7.5 \ \text{em}$$
Example 3
Convert $115.0\ \text{pt}$ to $\text{em}$.
$$\text{Length}_{\text{em}} = \frac{115.0}{12}$$
$$\text{Length}_{\text{em}} = 9.583333$$
$$\therefore \ 115.0\ \text{pt} = 9.583333 \ \text{em}$$
Example 4
Convert $135.0\ \text{pt}$ to $\text{em}$.
$$\text{Length}_{\text{em}} = \frac{135.0}{12}$$
$$\text{Length}_{\text{em}} = 11.25$$
$$\therefore \ 135.0\ \text{pt} = 11.25 \ \text{em}$$
Example 5
Convert $175.0\ \text{pt}$ to $\text{em}$.
$$\text{Length}_{\text{em}} = \frac{175.0}{12}$$
$$\text{Length}_{\text{em}} = 14.583333$$
$$\therefore \ 175.0\ \text{pt} = 14.583333 \ \text{em}$$