Grade Percentage Calculator
Calculate your grade percentage, letter grade, and GPA. Average multiple subjects with optional weighting, and find out what score you need to reach your target.
Marks & grade
Average across multiple subjects
Add each subject with its marks scored and total available. Optionally add a weight (credit hours, percentage weight, etc.) for a weighted average.
Subjects
What score do I need?
Find out what mark you need on an upcoming exam or assignment to reach your target grade.
Grade reference
| Percentage | UK grade | US letter | GPA (4.0) | Description |
|---|---|---|---|---|
| 90–100% | A* | A+ | 4.0 | Outstanding |
| 80–89% | A | A | 4.0 | Excellent |
| 70–79% | B | B+ | 3.3 | Very good |
| 60–69% | C | B | 3.0 | Good |
| 50–59% | D | C | 2.0 | Satisfactory |
| 40–49% | E | D | 1.0 | Below average / borderline pass |
| 0–39% | U | F | 0.0 | Fail |
Grade boundaries vary by institution, exam board, and country. This table shows common approximate thresholds — always check your specific course requirements.
How it's calculated
- Percentage: (marks scored ÷ total marks) × 100
- Weighted average: sum of (percentage × weight) ÷ sum of weights
- Score needed: (target − current × current weight ÷ 100) ÷ (remaining weight ÷ 100)
- GPA: mapped from percentage using the standard 4.0 scale above
Grade boundaries and GPA conversions are approximate and vary by institution. This calculator is for planning and estimation purposes only.