Enter your rubric levels, criteria count, and the score earned to convert any rubric-based assessment into a percentage grade. Set your minimum passing grade and choose whether your levels run in ascending or descending order — the calculator returns your percentage score, letter grade, and a clear pass/fail result.
Percentage Grade
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Score Earned
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Maximum Possible Score
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Letter Grade
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Pass / Fail
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Points from Passing
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The calculator divides your total score earned by the maximum possible score (number of levels × number of criteria), then multiplies by 100. For example, if your rubric has 4 levels and 5 criteria, the maximum score is 20. Earning 14 points gives you 14 ÷ 20 × 100 = 70%.
The maximum possible score equals the highest level value multiplied by the number of criteria. In a 4-level, 5-criteria rubric, the maximum is 4 × 5 = 20 points. Every criterion scored at the top level would achieve this maximum.
In descending order (most common), the highest-numbered level represents the best performance — so level 4 is the top score in a 4-level rubric. In ascending order, level 1 represents the best performance. The calculator adjusts the percentage conversion accordingly.
Add up the level number selected for each criterion across your rubric. For example, if you have 5 criteria and scored levels 4, 3, 4, 2, and 3 respectively, your total score is 4 + 3 + 4 + 2 + 3 = 16. Enter this sum into the 'Total Score Earned' field.
The calculator uses a standard grading scale: 90–100% = A, 80–89% = B, 70–79% = C, 60–69% = D, and below 60% = F. Your specific institution may use a slightly different scale, but this is the most widely accepted standard.
Yes — the calculator supports rubrics with 2 to 10 levels and 1 to 15 criteria. Simply adjust the 'Number of Levels' and 'Number of Criteria' fields to match your rubric design before entering the score.
The minimum passing grade is the percentage threshold a student must meet or exceed to pass. You can set this anywhere from 0% to 100%. The calculator compares the calculated percentage against this threshold and displays a clear Pass or Fail result, along with how many percentage points the score is above or below the cutoff.
A common grading error occurs when rubrics do not start at zero — for example, a 4-level rubric with levels 1–4 gives a minimum score of the number of criteria (not zero), which inflates the percentage floor. This calculator uses the true maximum (levels × criteria) to give an accurate conversion.