Measure (typography)

Measure (or sometimes "The Measure") in typography refers to the width of a block or column of text from the left margin to the right margin. Punctuation should preferably hang outside the measure. It is relative to each design but can be used as a unit of measurment within that design to create unity and harmony.

The measure of a text influences legibility. Long lines are hard to read, short liners are better to read. 45–75 characters per line are regarded as the ideal range for the measure. For multiple column setups, 40–50 characters are often preferred. 66 is sometimes considered ideal for one column setups. Generally, if the measure is wide, the leading of a text should be increased—if the measure is short, it it can safely be decreased. Reverse text, i.e. white text on black also requires more leading.