How to make Font size equal to 15 in Terminal on Mac OS X Yosemite?

Solution 1:

Here is what I did in OS X Yosemite 10.10.4.

Terminal (menu) > Preferences... > Settings > Select the target Profile > Text > Change... (button)

This brought up the Fonts window shown in the image below.

I then resized the Fonts dialog box vertically until the Size text window appeared and entered 15, as shown in the image below.

Solution 2:

You can also add custom values for font sizes. From the Font window, click the gear in the upper left, and choose "Edit Sizes".

Then, enter your value.

Solution 3:

Optionally, you can increase and decrease font size for bash with,

Command and the Plus (+) key
Command and the Minus (-) key