Test Grade Calculator
Enter the score you earned and the total possible points to see your test grade instantly.
How to use this test grade calculator
- Enter points earned
Type the number of points or correct answers you received in the Points earned field.
- Enter points possible
Type the total available points or questions in the Points possible field.
- View the percentage
The calculator instantly shows your grade as a percentage.
- Check the letter grade
See the estimated letter grade based on a standard A-to-F scale used here for planning.
How this test grade calculator works
This calculator divides the points earned by the total possible points, multiplies the result by 100, and reports the percentage grade. It also estimates a simple letter grade using a standard A-to-F scale.
grade % = (points earned ÷ points possible) × 100 If you scored 42 out of 50, the grade is (42 ÷ 50) × 100 = 84%. Under a simple letter-grade scale, that maps to a B.
On a 75-question multiple-choice test, a student answers 63 correctly. The grade percentage is (63 ÷ 75) × 100 = 84%, which maps to a B under a standard scale.
A lab report is scored out of 40 points. The student earns 35 points, giving a grade of (35 ÷ 40) × 100 = 87.5%, which rounds to a B+ in most grading systems.
- ✓ The scoring scale is linear, so each point counts equally unless your instructor says otherwise.
- ✓ The letter-grade output uses a simple A/B/C/D/F threshold for fast planning and may not match local grading systems.
- ✓ The result is a planning grade and may differ from classroom rules that use curves, dropped questions, or custom rounding.
- If your class uses weighted sections, this simple test-grade calculator may not match the final course-grade formula.
- A point-based test and a question-count test work the same way as long as points earned and points possible use the same scale.
- Use the final-grade or semester-grade calculators when you need target-score planning rather than a raw score check.
- Basic percentage arithmetic used in education and grading systems
Understanding linear vs. weighted scoring
A simple test grade treats every point equally — each correct answer adds the same fraction to the total percentage. This linear model works well for straightforward quizzes and exams where all questions carry identical weight. In contrast, some tests assign different point values to different sections: an essay might be worth 20 points while each multiple-choice question is worth 1 point. As long as you enter the total points earned and total points possible, the percentage formula still produces a correct result because it naturally accounts for the relative value of each section within the single test.
Why your classroom grade may differ
Instructors often apply adjustments that this calculator does not model. Common modifications include grading on a curve, where the top score is rescaled to 100% and everyone else's grade shifts proportionally; dropping the lowest question to remove outlier mistakes; or rounding up to the nearest whole percentage. Some teachers also use plus/minus letter grades with narrower bands than the simple A/B/C/D/F thresholds shown here. If your posted grade looks different from the calculator's result, check your syllabus for these policies. The calculator's output is a reliable raw-score check before any classroom-specific rules are applied.
Test grade calculator FAQs
How do I calculate a test grade percentage?
Divide the points earned by the total possible points, then multiply by 100.
Why might my classroom grade look different?
Some instructors curve results, weight sections differently, or apply custom rounding rules.
Does this work for question counts as well as points?
Yes. The same percentage formula works whether your score is recorded as points or correct answers.