30point

30point is a term used across several fields to indicate a scale or measure consisting of thirty discrete units. It does not refer to a single standardized concept; its exact meaning depends on context.

In typography and publishing, 30-point size denotes a font height of 30 points, with 1 point equal to 1/72 inch. This corresponds to about 0.4167 inches tall for capital letters in most fonts. 30-point type is typically used for display text, headlines, posters, and other oversized typography. Designers consider legibility, line length, and leading when selecting this size, and digital rendering may alter the perceived size across devices.

In data visualization, a 30-point scale may refer to a discretization of data into 30 levels. This can provide finer granularity than common 5- or 10-point scales while remaining legible in charts and legends. The exact mapping from data values to points depends on the visualization technique and the audience’s needs.

In educational assessment, a 30-point rubric uses a total of 30 points across criteria, allowing gradations of performance. Rubrics may allocate points for knowledge, analysis, clarity, and mechanics, with defined thresholds to translate scores into grades or feedback.

Because the term spans disciplines, the precise meaning of 30point should be inferred from its domain context. See also: typography point, scale (measurement), scoring rubric.