Grade Calculator
Calculate GPA, weighted average, and letter grades from subject marks
Grading Scale
Subjects
Enter marks (0–100) and credit hours for each subject.
Subject
Marks %
Credits
Weighted Average
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Grade: —
GPA (10-point)—
Simple Average—
Subject Breakdown
| Subject | Marks | Credits | Grade |
|---|
Indian 10-Point Grading Scale
| Marks % | Grade | GPA |
|---|---|---|
| 90–100 | O (Outstanding) | 10 |
| 80–89 | A+ | 9 |
| 70–79 | A | 8 |
| 60–69 | B+ | 7 |
| 55–59 | B | 6 |
| 50–54 | C | 5 |
| < 50 | F (Fail) | 0 |
Weighted vs Simple Average
The weighted average accounts for credit hours — a 4-credit math course counts more than a 1-credit lab. Weighted Average = Σ(marks × credits) ÷ Σ(credits).
Most Indian universities use credit-weighted GPA (CGPA). See also our CGPA to Percentage converter and SGPA Calculator for semester-level calculations.
quizFrequently Asked Questions
How is GPA calculated from percentage in India?
The CGPA-to-percentage conversion varies by university. Many universities use the UGC formula: Percentage = (CGPA − 0.75) × 10. So a 7.0 CGPA = (7.0 − 0.75) × 10 = 62.5%. Other universities simply multiply CGPA × 10 (7.0 CGPA = 70%). Always check your specific university's conversion scale.
How should I weight subjects for grade calculation?
Use credit hours as weights. A 4-credit subject (lecture-heavy) counts more than a 2-credit lab. Multiply each subject's marks by its credits, sum the products, and divide by total credits. For example: Physics 75/100 × 4 credits + Maths 85/100 × 3 credits = (300 + 255) ÷ 7 = 79.3% weighted average.
What is the difference between internal and external marks?
In most Indian universities, internal marks (20–40%) come from assignments, midterms, and attendance. External marks come from the end-semester examination (60–80%). Both are combined for the final grade. If internal marks are out of 100, scale them to your internal component (e.g., 70/100 scaled to 30% weightage = 21 marks).