LabVIEW takes the default font sizes from the operating system it is running on. To change the default font size for LabVIEW's Application, Dialog, and System fonts, follow the directions below.

The original font size for LabVIEW is 15.

LabVIEW 8.6 and Earlier

You can change the default font size to be used by LabVIEW by completing the following steps:

1. Select Tools » Options to open the options menu.
2. Click on Font on the left-hand side of the menu.
3. Use the drop down menu to select Application font, Dialog font, or System font.
4. Uncheck the Use default font button and click on the Font Style... button.
5. The Font Style box allows you to select the font and set the size to be used by LabVIEW.

LabVIEW 2009 and Later

You can change the default font size to be used by LabVIEW by completing the following steps:

1. Select Tools » Options to open the options menu.
2. Click on Environment on the left-hand side of the menu and scroll down to Font.
3. Use the drop down menu to select Application font, Dialog font, or System font.
4. Uncheck the Use default font button and click on the Font Style... button.
5. The Font Style box allows you to select the font and set the size to be used by LabVIEW.

For any changes to the default font style or size to take effect, LabVIEW must be restarted.