Cap height view angle calculator

This tool calculates the font size needed to ensure the font's cap height occupies a given part of the visual field at a given distance. The reasons for this and how the calculation is derived is in the accompanying article, Using cap height and distance to calculate font size.

Font size: size pt

To obtain the cap height and explore this with a specific font, enter the font name from Google fonts.

Cap height of this font:

Default font at size pt:

The Quick Brown Fox Jumps Over the Lazy Dog