CGPA (Cumulative Grade Point Average) is the weighted average of your semester GPAs across all completed semesters. The CBSE 10-point system uses CGPA × 9.5 to get the equivalent percentage — a formula that comes directly from the CBSE Class 10 grading rule.
What is CGPA Calculator?
CGPA is a single number that summarises your academic performance across multiple semesters. It is used by Indian universities, IITs, NITs, and CBSE schools to report cumulative results. Different institutions use different scales — CBSE uses 10, most engineering colleges use 10, some universities use 4 or 5.
The 'cumulative' part is what distinguishes CGPA from a single semester's GPA. CGPA averages all semester GPAs together, weighted by credits if applicable. If a semester has more credit hours, it weighs more. Equal-weight averaging works when each semester has the same credits.
The CBSE Class 10 board converts CGPA to percentage by multiplying by 9.5. So a CGPA of 8.0 = 76% under their formula. This conversion is specific to CBSE — engineering universities use their own conversion (often percentage = (CGPA − 0.5) × 10) or do not convert at all.
Computing CGPA
- GPAᵢ
- Semester GPA—Grade Point Average for semester i
- creditsᵢ
- Semester credits—credit hours assigned to that semester
How to use this calculator
Enter your semester GPAs as comma-separated values. Optionally add credit hours for weighted average.
Enter semester GPAs
List of numbers like '8.5, 9.0, 8.7'. Each value should be on the same scale (usually out of 10).
Enter credit hours (optional)
If your semesters have different credit weights, list them in the same order. Leave blank for equal-weighted average.
Read CGPA and percentage
The calculator returns the CGPA value and the CBSE-equivalent percentage.
When to use CGPA
College admissions
Most masters programs require CGPA reporting. The single number is what the admissions committee compares first.
Job placements
Campus placements often have CGPA cutoffs (e.g., 7.0+). Make sure your CGPA crosses the threshold for your dream company.
Scholarship eligibility
Many scholarships require minimum CGPA. Track yours after each semester to stay eligible.
Higher studies abroad
Foreign universities sometimes ask for percentage rather than CGPA. The CBSE × 9.5 conversion gives a starting estimate; some schools use their own equivalence.
Common mistakes to avoid
Mixing 10-point and 4-point GPAs
Convert all to one scale before averaging. A 4-point GPA of 3.5 ≈ a 10-point GPA of 8.75.
Using percentage = CGPA × 9.5 for engineering CGPA
The 9.5 multiplier is CBSE Class 10 specific. Engineering universities have their own conversions — check your institute's rule.
Glossary
- CGPA
- Cumulative Grade Point Average — weighted average across all completed semesters.
- GPA
- Grade Point Average for a single semester.
- Credit hours
- Numerical weight assigned to a course based on study hours. Used for weighted CGPA.
- Grade points
- Numeric value assigned to each letter grade (e.g., A=10, B=8). Calculated per course, summed per semester.
- Percentage equivalent
- Approximate percentage corresponding to a CGPA. CBSE uses CGPA × 9.5.