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How to Calculate SGPA to CGPA for JNTUH (Calculator & Steps)
February 14, 20245 min read
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SGPA vs CGPA: The Core Difference
SGPA (Semester Grade Point Average) is your score for a single semester.
CGPA (Cumulative Grade Point Average) is the weighted average of all semesters completed so far.
The Golden Rule
You generally CANNOT calculate CGPA by just taking the average of SGPAs (e.g., (8.0 + 9.0)/2). You must consider the credits of each semester.
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The Accurate Formula
CGPA = Σ (Credits × SGPA) / Total Credits
Real Calculation Example
Let's calculate CGPA for a student after 2 semesters:
Semester 1
Credits (C1)21
SGPA (S1)7.5
Points: 21 × 7.5 = 157.5
Semester 2
Credits (C2)21
SGPA (S2)8.2
Points: 21 × 8.2 = 172.2
Final Calculation:
- Total Points = 157.5 + 172.2 = 329.7
- Total Credits = 21 + 21 = 42
- CGPA = 329.7 / 42 = 7.85
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