How is the percentage calculated?

The percentage is calculated as (Score ÷ Total) × 100. For example, 42 out of 50 equals 84%.

What grading scale does this calculator use?

The default scale is the standard US scale: A (90–100), B (80–89), C (70–79), D (60–69), F (below 60). Enable the +/- toggle to see finer grades such as A-, B+, C+, etc.

Can I use decimal scores?

Yes. Both the score and total fields accept decimal values, such as 8.5 out of 10.

What if my score is higher than the total?

Scores above 100% are allowed for extra credit. The percentage will exceed 100%; the basic scale shows A, while the +/- scale shows A+.

Does this work for weighted grades?

This tool calculates a single raw-to-percentage conversion. For weighted averages across multiple assignments, use a dedicated grade calculator instead.

Why does my school use a different cutoff for an A?

Grading scales vary by institution. Some schools set the A cutoff at 93% for an A and 90% for an A-. The +/- scale toggle in this tool uses that common variant.

Grade Percentage Calculator

Enter your raw score and total points to instantly get your percentage grade and letter grade.

Enter Your Score

Points Earned (Score)

Total Points Possible

Show +/- letter grades (A-, B+, etc.)

Grade Scale

Summary

The Grade Percentage Calculator converts a raw score and total possible points into a percentage grade and corresponding letter grade. It supports the standard A–F scale used by most US schools and universities, making it easy to interpret any test, quiz, or assignment result at a glance.

How it works

Enter your raw score (points earned) in the first field.
Enter the total points possible for the assignment or exam.
Click "Calculate" to compute your percentage grade.
Your letter grade is shown based on the standard A–F scale (A: 90–100, B: 80–89, C: 70–79, D: 60–69, F: below 60).
Toggle the +/- scale to see finer letter grades such as A-, B+, or C+.
The full grade scale table is displayed so you can see where you stand.

Use cases

Quickly find out your grade on a test or quiz.
Determine your letter grade for a homework assignment.
Convert multiple raw scores when reviewing exam results.
Understand how many more points you needed to reach the next letter grade.
Compare scores from different exams that have different point totals.
Verify a grade before contesting it with an instructor.
Help students understand grading thresholds before submitting work.
Convert rubric scores into letter grades for project evaluations.

Frequently Asked Questions

Last updated: 2026-05-29 · Reviewed by Nham Vu