Grading Calculator 2026: Raw Score, Scale & Final Grade
Use this grading calculator to convert wrong answers, raw points, weighted categories, or a final exam target into a percentage and letter grade. It includes an EZ grader chart, formulas, examples, and copy/print tools.
Free Grading Calculator
Choose wrong answers, points grade, weighted grade, or final grade needed. The calculator returns the percentage, letter grade, formula, and breakdown using your selected grading scale.
| Mode | Use it for | Example input |
|---|---|---|
| Wrong answers | EZ grader chart and paper tests | 20 questions, 2 wrong |
| Points grade | Raw score to percentage and letter grade | 43 out of 50 |
| Weighted grade | Homework, quizzes, projects and exams | 92% at 30%, 85% at 20%, 88% at 50% |
| Final grade needed | Target course grade planning | 86 current, 20% final, 90 target |
EZ Grader: Calculate a Grade from Wrong Answers
Enter the total number of questions and how many were wrong. This is the fastest way to grade paper tests, quizzes, worksheets, and multiple-choice assignments.
Test Grade Calculator from Points
Use this mode when you know the points earned and total points possible.
Weighted Grade Calculator
Add each course category, the score earned in that category, and the category weight. The calculator normalizes weights if they do not add to exactly 100%.
Final Grade Calculator: What Score Do I Need?
Enter your current course grade, how much the final exam is worth, and your target course grade. The result shows the final exam score needed.
EZ Grader Chart for 20 Questions
The highlighted row matches the current wrong-answer entry.
| Wrong | Correct | Percent | Letter Grade |
|---|---|---|---|
| 0 | 20 | 100% | A+ |
Grading Calculator Formulas
Grade from correct answers
Example: 18 correct out of 20 = 18 ÷ 20 × 100 = 90%.
Grade from wrong answers
Example: 2 wrong out of 20 means 18 correct, so the grade is 90%.
Grade from points earned
Example: 43 points earned out of 50 = 43 ÷ 50 × 100 = 86%.
Weighted grade formula
Example: homework 92% at 30%, quizzes 85% at 20%, exams 88% at 50% gives 88.6%.
Final grade needed formula
Use final weight as a decimal. A 20% final exam weight is 0.20.
Worked Grading Examples
20 total questions − 2 wrong = 18 correct. 18 ÷ 20 × 100 = 90%, which is usually an A- on the standard scale.
25 total questions − 5 wrong = 20 correct. 20 ÷ 25 × 100 = 80%, which is usually a B- on the standard scale.
43 ÷ 50 × 100 = 86%. On the standard scale, 86% is usually a B.
If your current grade is 86%, the final is worth 20%, and you want 90% overall, you need 106% on the final, so the target is not realistic without extra credit.
Common Grading Scale Charts
Schools and teachers use different grading policies. Always follow your class syllabus, school handbook, or teacher's official grading scale.
Standard A+ to F grading scale
| Letter Grade | Percentage Range | Common Meaning |
|---|---|---|
| A+ | 97–100% | Outstanding |
| A | 93–96% | Excellent |
| A- | 90–92% | Very good |
| B+ | 87–89% | Good plus |
| B | 83–86% | Good |
| B- | 80–82% | Above average |
| C+ | 77–79% | Average plus |
| C | 73–76% | Average |
| C- | 70–72% | Below average |
| D+ | 67–69% | Poor plus |
| D | 63–66% | Poor |
| D- | 60–62% | Minimum pass |
| F | 0–59% | Fail |
Simple 90/80/70/60 grading scale
| Letter Grade | Percentage Range | Common Meaning |
|---|---|---|
| A | 90–100% | Excellent |
| B | 80–89% | Good |
| C | 70–79% | Average |
| D | 60–69% | Passing |
| F | 0–59% | Failing |
UAE-style percentage grading scale
| Letter Grade | Percentage Range | Description |
|---|---|---|
| A+ | 90–100% | Excellent |
| A | 85–89% | Very good |
| B+ | 80–84% | Good |
| B | 75–79% | Above average |
| C+ | 70–74% | Average |
| C | 65–69% | Satisfactory |
| D+ | 60–64% | Pass |
| D | 50–59% | Minimum pass |
| F | 0–49% | Fail |
How to Use This Grade Calculator
- Select the calculation mode: use wrong answers, points grade, weighted grade, or final grade needed.
- Enter your numbers: add the total, wrong answers, points, category weights, or final exam weight.
- Choose the grading scale: standard A+ to F, simple 90/80/70/60, UAE-style, pass/fail, or percentage only.
- Click Calculate Grade: the calculator shows your percentage, letter grade, formula, and breakdown.
- Use the chart: teachers can print or copy the EZ grader chart for the selected test size.
Grading Calculator FAQs
Need Help Improving a Grade?
NUM8ERS.COM offers online and in-person tutoring in Dubai for math, science, IB, IGCSE, A Level, AP, SAT, ACT, and school curriculum support.
WhatsApp: +971-52-790-6688 | Email: [email protected]
Methodology and Accuracy Notes
This calculator uses standard arithmetic formulas for percentages, weighted averages, and final grade targets. It is intended for fast grade estimates. Official report-card grades should always follow the grading policy set by the teacher, school, university, or examination board.
For nearby workflows, use the percentage of marks calculator for marksheet percentages, the K-12 grade calculator for school grading, or the GPA calculator for course GPA.