How to Calculate CGPA from SGPA (Step-by-Step Guide)

If you're a university student, you've probably seen both SGPA and CGPA on your result — and wondered how they are connected.

Don't worry. In this guide, you'll learn exactly how to calculate CGPA from SGPA in a simple and practical way.

📑 Table of Contents

• What is SGPA?
• What is CGPA?
• CGPA Formula
• Step-by-Step Calculation
• Example with Credit Hours
• FAQs

📌 What is SGPA?

SGPA (Semester Grade Point Average) represents your performance in a single semester based on your subject grades and credit hours.

📌 What is CGPA?

CGPA (Cumulative Grade Point Average) shows your overall academic performance across all semesters.

🧠 CGPA Formula

CGPA = (SGPA₁ × Credit₁ + SGPA₂ × Credit₂ + ...) ÷ Total Credits

If all semesters have equal credits:

CGPA = (Sum of SGPAs) ÷ Number of Semesters

✍️ Step-by-Step Calculation

Step 1: List Your SGPAs

• Semester 1 → 3.2
• Semester 2 → 3.5
• Semester 3 → 3.8

Step 2: Add Them

3.2 + 3.5 + 3.8 = 10.5

Step 3: Divide

10.5 ÷ 3 = 3.5 CGPA

📊 Example with Credit Hours

Semester	SGPA	Credits
1	3.2	15
2	3.5	18
3	3.8	16

Calculation:

• 3.2 × 15 = 48
• 3.5 × 18 = 63
• 3.8 × 16 = 60.8

Total = 171.8

Total Credits = 49

CGPA = 171.8 ÷ 49 = 3.51

❗ Common Mistakes

• Ignoring credit hours
• Using wrong formula
• Mixing percentage with GPA

❓ FAQs

Is CGPA just average of SGPA?

Yes, only if all semesters have equal credit hours.

Which is more important SGPA or CGPA?

CGPA is more important as it reflects overall performance.

What is a good CGPA?

3.5+ is excellent, 3.0+ is good.

🎯 Conclusion

Calculating CGPA from SGPA is simple once you understand the formula. For accurate and fast results, always consider credit hours.