Test Grade Calculator
Enter your marks obtained and total marks — get your percentage, letter grade, GPA equivalent, and pass/fail status instantly. Grade one test or all your subjects at once.
How to Use the Test Grade Calculator
This calculator works differently from a wrong-answers grader. You enter your actual marks the score you got and the total available and it instantly shows your percentage, letter grade, GPA, and pass/fail verdict based on your school's passing threshold.
What Is a Test Grade Calculator?
A test grade calculator converts your raw score into a percentage, letter grade, and GPA value — instantly. You enter the marks you got and the total marks available, and the calculator does everything else: the division, the percentage, the letter grade lookup, and the GPA conversion.
This tool goes beyond a basic percentage converter. It shows your GPA on the 4.0 scale, calculates exactly how many marks you still need if you're below the passing threshold, and includes a full multi-subject section so you can find your overall grade across all your tests in one place.For a complete guide on how test grades are calculated including the formula, mixed question values, and how your score affects your course grade read How to Calculate Your Test Grade.
"Whether you scored 38/50 or 76/100, this test grade calculator converts any marks into a percentage, letter grade, and GPA equivalent in under a second — for any subject, any scale."
The Test Grade Formula
Every test grade comes from this formula:
Test Grade % = (Marks Obtained ÷ Total Marks) × 100
Example: 38 out of 50 → (38 ÷ 50) × 100 = 76% — B grade, GPA 3.0. Another example: 15 out of 20 → (15 ÷ 20) × 100 = 75% — C grade, GPA 2.0.
Full Test Grading Scale with GPA
| Percentage | Letter Grade | GPA (4.0) | Description |
|---|---|---|---|
| 97–100% | A+ | 4.0 | Perfect |
| 90–96% | A | 4.0 | Excellent |
| 87–89% | B+ | 3.3 | Very Good |
| 80–86% | B | 3.0 | Good |
| 77–79% | C+ | 2.3 | Above Average |
| 70–76% | C | 2.0 | Average — Passing |
| 60–69% | D | 1.0 | Below Average |
| 0–59% | F | 0.0 | Failing |
What Is a 75 in Letter Grade?
A 75% is a C grade with a GPA of 2.0. It sits in the average range and is passing in most schools. For example: 15/20 = 75% = C, or 75/100 = 75% = C. Schools with a 70% minimum passing threshold accept 75% — it sits safely above it.
Common Test Scores at a Glance
| Score | Percentage | Letter Grade | GPA |
|---|---|---|---|
| 20/20 | 100% | A+ | 4.0 |
| 18/20 | 90% | A | 4.0 |
| 17/20 | 85% | B | 3.0 |
| 15/20 | 75% | C | 2.0 |
| 14/20 | 70% | C | 2.0 |
| 38/50 | 76% | B | 3.0 |
| 45/75 | 60% | D | 1.0 |
Who Is the Test Grade Calculator For?
Anyone who needs to know what a mark actually means — not just the raw number itself.
- Students — Enter your marks the moment you get your paper back. Know your letter grade, GPA points, and pass/fail status before the gradebook is even updated.
- Teachers — Use the multi-subject table to quickly calculate grades across all subjects. Enter obtained and total marks per subject and see the overall result in one click.
- Parents — 38 out of 50 doesn't mean much on its own. 76%, a B grade, and a GPA of 3.0 gives you a clear picture of where your child actually stands.
- International students — Convert marks from any system into US letter grades and GPA values for college applications, transfers, or scholarship requirements.
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