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IU Editorial Style Guide, Letter G

grade point average (GPA)

Do not hyphenate grade point average or put periods in its abbreviation, GPA. GPAs refer to numbers, not grades.

a GPA of 3.0, not a GPA of B


When referring to a grade, use a capital letter; quotation marks should not be used around letter grades. Use an en dash to indicate a minus sign.

a B– average for the course, a P/F course, a grade of I (Incomplete)

Pluralize single letter grades with apostrophes.

She got mostly B’s and C’s all year.

See also capitalization.