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Class GradeCALCULATOR

Grading scale calculator

See the letter for your percentage, the cutoff that gave it and what rounding changes.

Enter a percentage, then choose the scale in your syllabus.

Example percentage. Type yours over it, or

The plus/minus cutoffs Wikipedia lists for US colleges: A+ from 97%, A 93, A- 90, B+ 87, B 83, B- 80 and so on down to D- at 60. It is not universal, so use your syllabus's cutoffs when they differ. Source: Wikipedia, “Academic grading in the United States”.

Rounding and decimal places

Follow your syllabus. A displayed percentage can round up while the unrounded score stays below a cutoff.

Only changes how results are shown. Extra places appear when rounding would push a score over a letter cutoff.

Grading scales checked . Sources are at the bottom of the page.

What is the grading scale?

There is no single US grading scale. One class may put an A at 90%; another may require 93%. Plus/minus letters and GPA points can differ too. A school-wide grade-point table does not automatically tell you a class's percentage cutoffs.

The calculator starts on the common US plus/minus scale Wikipedia lists for US colleges, where an A starts at 93% and an A- at 90%. The NCES scale has whole letters only (A from 90%). Each named school scale applies to a specific setting: Emmanuel's scale is suggested, Ohio State's is law-only, and Mount Saint Vincent's is for professional and graduate study. The table beside your result shows the boundaries for the scale you choose.

Custom cutoffs accept your own letter labels and minimum percentages. They do not guess corresponding GPA points.

Does a near miss round up?

With no rounding, the example 89.5% remains below a 90% cutoff. If your class rounds to the nearest whole percent first, it becomes 90% before assigning the letter.

A calculator displaying 90% does not prove the underlying score reached 90%. This tool applies the letter to the full value unless you select whole-percent rounding.

Some published scales stop above an F: a law-school scale, for example, may list no letter below 60%. If your score is below the lowest letter a scale lists, the calculator does not guess one. Use your instructor's rule for that range.

Use the scale with your scores

For one score, the score percentage calculator shows the fraction and nearby scores.

Turn questions wrong into a letter with the easy grader, or combine assignments in the class grade calculator. To translate several course letters into a GPA, choose the school's grade points in the GPA calculator.

Grades from a school outside the US follow their own country’s scale: see the grading systems by country.