Credit-Based Grade Calculator
Enter subject marks and credits to auto-calculate grades, SGPA, and pass/fail status
Subject Marks & Credits
Grading Scale (Percentage)
≥90% = A+ ≥80% = A ≥70% = B+ ≥60% = B
≥50% = C ≥40% = D <40% = F (Fail)
SGPA = Σ(Credits × Grade Points) / Σ Credits
A+=9, A=8, B+=7, B=6, C=5, D=4, F=0
SGPA
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Overall Percentage
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Total Credits—
Total Marks—
Overall Grade—
Classification—
Subjects Failed—
Subject-wise Result
| Subject | Max | Obt | % | Grade | Cr | GP | Status |
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What is a Credit-Based Grade Calculator?
The Credit-Based Grading System (CBGS) used by Indian universities assigns letter grades based on percentage of marks obtained in each subject. Credits weight each subject's importance in computing the final SGPA.
This calculator auto-assigns grades based on standard Indian grading thresholds (O ≥ 90%, A+ ≥ 80%, A ≥ 70%, etc.), computes SGPA from marks and credits, and flags subjects where you need more marks to pass — all in one step.
lightbulb Example Calculation
Scenario: Anil Kumar, B.Sc. student at Delhi University — 3 subjects this semester: Statistics 88/100 (4 credits), Economics 72/100 (4 credits), English 65/100 (3 credits). Wants to know SGPA and if he passed all subjects
1Grades: Statistics 88% → A (8pts), Economics 72% → B+ (7pts), English 65% → B (6pts)
2Weighted: (4×8) + (4×7) + (3×6) = 32+28+18 = 78
3SGPA = 78 / 11 = 7.09 → ~67.4%
✓ Result: SGPA 7.09 — First Class
help_outlineHow to Use the Credit-Based Grade Calculator
- Enter the subject name, maximum marks, marks obtained, and credit value for each subject in the form rows.
- Click "Add Subject" to include more rows — add every subject in your current semester for a complete SGPA calculation.
- Results update live as you type — grades are auto-assigned based on percentage thresholds (≥90% = A+, ≥80% = A, ≥70% = B+, etc.).
- Review the SGPA, overall percentage, and the subject-wise result table showing each subject's grade, grade points, and pass/fail status.
- If any subject is failed (below 40%), the "Marks Needed to Pass" section shows exactly how many marks were short — useful for planning supplementary exams.
Benefits
- Auto-assigns grades without manually referring to grade tables — just enter marks and credits
- SGPA computed with proper credit-weighting — subjects with more credits impact SGPA more
- Failed subjects highlighted with marks needed to clear — plan supplementary exam preparation
- Covers standard Indian grading (O/A+/A/B+) and pass/fail status in one combined view
- Useful for pre-exam planning — estimate minimum marks needed for a target SGPA
Key Terms
- SGPA
- Semester Grade Point Average = Σ(Credits × Grade Points) / Σ Credits; measures one semester's performance
- Credit
- Weightage assigned to a subject — core subjects typically carry 4–6 credits, labs/electives 2–3
- Grade Point
- Numeric score for each grade: A+=9, A=8, B+=7, B=6, C=5, D=4, F=0 (on a 10-point scale)
- Pass Mark
- Minimum 40% in most Indian universities; failing below this requires re-examination (supplementary/arrear)
- Credit-Weighted Average
- A 4-credit subject affects SGPA twice as much as a 2-credit subject for the same grade earned
quizFrequently Asked Questions
What is the difference between SGPA and CGPA?
SGPA (Semester GPA) is calculated fresh each semester from that semester's subjects and credits alone. CGPA (Cumulative GPA) is the running weighted average of all your SGPAs across all semesters, weighted by each semester's total credits. A weak first year can be partially offset by strong later semesters, but because CGPA is cumulative, it improves slowly — recovering 0.5 CGPA points over 6 semesters requires consistent above-average SGPAs.
How does credit-weighting affect SGPA calculation?
A subject with more credits contributes proportionally more to SGPA. Example: A (8 grade points) in a 4-credit subject contributes 32 to the SGPA numerator; the same grade in a 2-credit subject contributes only 16. Conversely, an F (0 grade points) in a 4-credit core subject eliminates 32 points — severely dragging SGPA. Always prioritise passing high-credit subjects if you are at risk of failing.
What happens to SGPA when I fail a subject?
A failed subject (F grade, 0 grade points) pulls SGPA toward zero proportionally to its credits. When you pass the supplementary exam, the F grade is replaced with the new grade — but most universities cap the maximum grade in supplementary exams at B or C regardless of actual performance. Some institutions retain the F in the transcript alongside the supplementary grade. Check your university's back-paper policy for grade replacement rules.
Is the grading scale the same at all Indian universities?
No. Common scales differ by institution: AICTE-recommended (O ≥90%, A+ ≥80%, A ≥70%, B+ ≥60%, B ≥50%, C ≥40%, F <40%); VTU and Anna University have slight variations; Mumbai University uses (O ≥75%...); some universities start O at 85%. This calculator uses AICTE-recommended thresholds as default. If your university uses a different scale, verify the grade boundaries in your university's academic regulations.
Can I use this to predict my SGPA before final exam results?
Yes. If you know your internal and practical marks, enter them to estimate performance. For theory, estimate your expected score based on preparation and enter it — the calculator projects SGPA and flags subjects at risk. Use it in reverse too: decide your target SGPA, then back-calculate the minimum theory marks needed in each subject to reach that target. This is a powerful planning tool during exam preparation weeks.