🎓 How to Calculate AKTU CGPA & SGPA — A Complete Guide with Example

If 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.

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