🎓 How to Calculate AKTU CGPA & SGPA — A Complete Guide with Example
I
f you're studying under Dr. A.P.J. Abdul Kalam Technical University (AKTU), you've probably come across the terms CGPA and SGPA — but what do they really mean, and how are they calculated?
In this blog, we break it down in the most student-friendly way, with simple formulas, examples, and even a link to a ready-made calculator you can use instantly.
👉 Click here for AKTU SGPA/CGPA Calculator
📘 What is SGPA and CGPA?
| Term | Full Form | Meaning |
|---|---|---|
| SGPA | Semester Grade Point Average | Average grade points earned in a single semester |
| CGPA | Cumulative Grade Point Average | Overall performance across all semesters |
Both CGPA and SGPA are calculated on a 10-point scale. They don’t directly reflect your marks in percentage but are derived from grade points based on the marks you score in each subject.
🔢 Understanding the Basics: Credits, Grades, and Grade Points
Before diving into calculations, let’s understand a few important terms:
🎯 1. Subject Credits
Each subject has a credit value depending on its importance and hours per week. For example:
| Subject | Type | Credits |
|---|---|---|
| Maths | Theory | 4 |
| Physics Lab | Practical | 1 |
🅰️ 2. Grade and Grade Points
AKTU assigns grades based on the marks scored out of 100. Here's a common grading system used:
| Marks Range | Grade | Grade Point |
|---|---|---|
| 90–100 | O | 10 |
| 80–89 | A+ | 9 |
| 70–79 | A | 8 |
| 60–69 | B+ | 7 |
| 50–59 | B | 6 |
| 40–49 | C | 5 |
| < 40 | F | 0 (Fail) |
Example: If you score 90 in a subject, you get Grade “O” and Grade Point = 10
✍️ How to Calculate SGPA?
The formula to calculate SGPA is:
SGPA = (Σ Credit × Grade Point) / (Σ Credits)
✅ Example SGPA Calculation:
Let’s say in a semester, you have the following subjects:
| Subject | Marks Scored | Grade | Grade Point | Credit | Credit × Grade Point |
|---|---|---|---|---|---|
| Maths | 92 | O | 10 | 4 | 40 |
| Physics | 78 | A | 8 | 4 | 32 |
| Programming | 85 | A+ | 9 | 3 | 27 |
| Physics Lab | 91 | O | 10 | 1 | 10 |
| Programming Lab | 88 | A+ | 9 | 1 | 9 |
| Total | 13 | 118 |
So,
SGPA = 118 / 13 = 9.07
👉 Use our SGPA calculator:
🔗 AKTU SGPA Calculator
🎓 How to Calculate CGPA?
CGPA is calculated over multiple semesters using this formula:
CGPA = (Σ SGPA × Semester Credits) / Total Credits Till Now
✅ Example CGPA Calculation:
| Semester | SGPA | Total Credits |
|---|---|---|
| 1st | 8.5 | 22 |
| 2nd | 9.1 | 25 |
| 3rd | 8.8 | 24 |
| Total | 71 |
Now,
CGPA = (8.5×22 + 9.1×25 + 8.8×24) / 71
= (187 + 227.5 + 211.2) / 71
= 625.7 / 71
= 8.81
👉 Try it yourself here:
🔗 CGPA Calculator
🧪 Why Practical Subjects Have Lower Credits?
You may have noticed that lab/practical subjects, even if you score high in them, have lower credits.
| Subject | Max Marks | Credit |
|---|---|---|
| Theory | 100 | 3-4 |
| Practical | 100 | 1-2 |
Reason:
-
Theory subjects involve more in-depth knowledge and continuous evaluation.
-
Practical sessions are shorter and fewer in number.
-
AKTU uses credits to balance subject weightage, not just marks.
So, even if you get full marks in labs, their impact on SGPA/CGPA will be limited due to lower credits.
✅ Final Tips
-
Always focus on subjects with higher credits to boost SGPA fast.
-
Use a planner to track your grades and calculate SGPA after each result.
-
Failing a subject (F Grade) means grade point = 0, which severely drops your SGPA — avoid this!
-
Convert CGPA to percentage using:
Percentage = (CGPA - 0.75) × 10
📎 Use the Calculator Now
No need to calculate manually — just enter your subject marks and credits here:
👉 🎯 AKTU CGPA/SGPA Calculator — GyanAangan
📝 Conclusion
CGPA and SGPA are not difficult once you understand the system of credits + grade points. By focusing more on high-credit subjects and consistently scoring in higher grade bands, you can easily maintain a great academic record.
Stay consistent, use the calculator tool, and track your performance semester by semester.
📍 Bookmark this blog and share it with your batchmates!