Cap height
Height of a capital letter above the baseline
In typography, cap height is the height of a capital letter above the baseline for a particular typeface. It specifically is the height of capital letters that are flat, such as H or I, as opposed to round letters such as O, or pointed letters like A, both of which may display overshoot. The height of the small letters is the x-height.

Sources and credits
This article is adapted from the Wikipedia article “Cap height”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- Typography Line Terms.svg by Max Naylor, Public domain
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