Grade Calculator
Enter what you scored and what the test was out of.
A grade percent is the share of the points you earned. Use this grade calculator to turn a test score into a percent and letter grade, to work out what you need on your final exam to reach the grade you want, or to build a grading scale showing every possible score on a test.
Earned ÷ possible × 100 works for any test, quiz or assignment
Percent to Letter Grade
The most common US scale, with GPA points on a 4.0 scale. Schools vary, so your syllabus always wins.
| Letter | Percent | GPA |
|---|---|---|
| A+ | 97–100 | 4.0 |
| A | 93–96 | 4.0 |
| A− | 90–92 | 3.7 |
| B+ | 87–89 | 3.3 |
| B | 83–86 | 3.0 |
| B− | 80–82 | 2.7 |
| C+ | 77–79 | 2.3 |
| C | 73–76 | 2.0 |
| C− | 70–72 | 1.7 |
| D+ | 67–69 | 1.3 |
| D | 63–66 | 1.0 |
| D− | 60–62 | 0.7 |
| F | below 60 | 0.0 |
What Do I Need on the Final?
Your course grade is a mix of everything so far and the final. Work backwards from the grade you want.
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Weight What You Have
With the final worth 25%, your current 82% counts for the other 75%: 82 × 0.75 = 61.5 points.
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Find the Gap
For an 85% course grade you need 85 − 61.5 = 23.5 more points from the final.
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Scale Up the Final
The final is only 25% of the grade, so divide by 0.25: 23.5 ÷ 0.25 = 94% on the final.
When Categories Count Differently
Many classes weight homework, quizzes and tests differently. Then your grade is a weighted average, not the total points.
| Category | Your average | Weight | Counts for |
|---|---|---|---|
| Homework | 95% | 20% | 19 |
| Quizzes | 80% | 30% | 24 |
| Tests | 78% | 50% | 39 |
| Course grade | 100% | 82% · B− |
Enter your categories in the Average Calculator's weighted mode, then bring that grade back here to plan your final.
Grades on a 4 Function Calculator
Every grade question is a division or two on a basic calculator.
42 out of 50
Final Needed
Each Question on a 25-Question Test
Weighted categories, finals and GPA are worked through in How to Calculate Your Grade (and What You Need on the Final).
Explore Other Calculators
Frequently Asked Questions
How do I calculate my grade percentage?
Divide the points you earned by the points possible, then multiply by 100. 42 out of 50 is 42 ÷ 50 × 100 = 84%.
What letter grade is 85%?
A B on the common US scale (83–86.99%). Without plus and minus grades, anything from 80 to 89.99% is a B. Schools set their own scales, so check your syllabus.
How do I work out what I need on my final exam?
Needed = (target − current × (1 − final weight)) ÷ final weight. With 82% now, a final worth 25% and a target of 85%: (85 − 82 × 0.75) ÷ 0.25 = 94%.
What if I need more than 100% on the final?
Then the target can't be reached with the final alone, unless there's extra credit. The calculator shows the best grade you can still reach with a perfect final, and what you need for each lower letter grade.
How many questions can I miss and still get an A?
10% of the questions, rounded down, for an A at 90%. On a 25-question test that's 2; missing 3 gives 22 of 25 = 88%. The Grading scale mode lists every possible score for any test length.
Is 89.5% an A?
Only if your teacher rounds. Many round 89.5% up to 90% (an A−), but others use the exact percent, so 89.5% stays a B+. This calculator uses the exact percent.