Let’s quickly clear up the difference between SGPA and CGPA so you know exactly what you’re converting.
- SGPA (Semester GPA): Think of it as your “semester scorecard.” It measures just one term and shows whether you’re improving or slipping compared to the last semester.
- CGPA (Cumulative GPA): This is your “career scoreboard.” It averages all semesters together and is the number that shows up on transcripts, resumes, and grad school apps.
- How they connect: Every SGPA you earn adds to your CGPA. A strong semester can pull your CGPA up, while a weak one can drag it down.
How to Use the SGPA to CGPA Calculator
- Enter your details – Add your SGPA values (and credits, if required).
- Choose your scale – Select 4.0, 10.0, or your school’s system.
- Calculate your result – Click the button to see your CGPA and percentage instantly.
How SGPA and CGPA Are Calculated
Both SGPA and CGPA use a grade point system – usually a 4.0 scale (common in the U.S.) or a 10.0 scale (used in countries like India). The idea is the same everywhere: grade points are assigned to each subject, weighted by credits, and then averaged.
SGPA (Semester GPA)
Your SGPA shows performance for one semester. Here’s the process:
- Convert each grade into grade points (e.g., on a 4.0 scale: A = 4, B = 3; on a 10.0 scale: A = 9, B = 8).
- Multiply the grade points by the credits for that course.
- Add everything up.
- Divide by the total number of credits taken that semester.
Formula:
SGPA = (Σ [Grade Points × Credits]) ÷ Total Semester Credits
CGPA (Cumulative GPA)
Your CGPA is the weighted average of all your SGPAs across semesters. To calculate:
- Take the SGPA for each semester.
- Multiply each SGPA by its semester’s total credits.
- Add these results together.
- Divide by the total credits across all semesters.
Formula:
CGPA = (Σ [SGPA × Semester Credits]) ÷ Total Credits
CGPA to Percentage Conversion Tables
Some schools report grades as percentages instead of grade points, and many applications (jobs, scholarships, study abroad) ask you to convert. The exact formula can vary by institution, but here are the most common methods:
10.0 Scale
| SGPA / CGPA | Percentage |
|---|---|
| 10.0 | 100% |
| 9.0 | 90% |
| 8.0 | 80% |
| 7.0 | 70% |
| 6.0 | 60% |
4.0 Scale
| SGPA / CGPA | Percentage |
|---|---|
| 4.0 | 100% |
| 3.0 | 75% |
| 2.0 | 50% |
| 1.0 | 25% |
| 0.0 | 0% |
📌 Note: Always confirm with your college or university. Some schools use slightly
SGPA to CGPA and Percentage Conversion Examples
Example 1: 10-Point Scale, Equal Credits
| Step | Calculation | Result |
|---|---|---|
| 1 | 8.5 + 9.0 + 8.8 | 26.3 |
| 2 | 26.3 ÷ 3 | 8.77 |
| 3 | 8.77 × 10 (convert to %) | 87.7% |
Final Result: CGPA = 8.77 (≈ 87.7%)
Example 2: 4-Point Scale, Varying Credits
| Step | Calculation | Result |
|---|---|---|
| 1 | (3.2 × 15) + (3.5 × 18) | 48 + 63 = 111 |
| 2 | 111 ÷ (15 + 18) = 111 ÷ 33 | 3.36 |
| 3 | 3.36 × 25 (convert to %) | 84% |
Final Result: CGPA = 3.36 (≈ 84%)
FAQs
Is CGPA the same as GPA?
Not exactly. GPA (Grade Point Average) usually refers to performance in a single semester or term, while CGPA (Cumulative GPA) is the overall average across all completed semesters. Think of GPA as a snapshot and CGPA as the big picture.
How is CGPA calculated?
CGPA is the weighted average of all your semester GPAs (SGPAs). Multiply each SGPA by the credits for that semester, add them up, then divide by the total number of credits. A good CGPA calculator automates this process for you.
What is a good CGPA in college?
It depends on your program and goals. On a 10-point scale, a CGPA of 7.5 to 8.0+ is usually considered strong. On a 4.0 scale, anything above 3.0 is solid, though competitive programs and top recruiters often look for 3.5 or higher.
Does CGPA matter for jobs and placements?
Yes, many companies and graduate schools use CGPA as a screening filter. A higher CGPA can open doors, especially for first jobs or campus placements. But it’s not the only factor: skills, internships, and projects carry equal weight.
How many semesters are included in CGPA?
All semesters you’ve completed so far are included. Each new semester adds to your CGPA, which is why it changes slowly compared to your SGPA.
Why is my SGPA higher than my CGPA?
This usually means you did better this semester than in previous ones. SGPA covers one term, while CGPA averages everything, so a strong term often looks higher than your overall CGPA.
Can I include failed courses in CGPA calculation?
Yes, you must. Failed courses typically carry zero grade points, so they lower your CGPA. Some schools allow retakes to replace the failed grade, while others average both attempts.
What if my school uses a different grading scale (e.g. 5.0 or 10.0)?
Always follow your school’s official grading system. If your calculator doesn’t support it, you can manually convert your grades. For example, a 75% score might equal 3.0 on a 4-point scale or 7.5 on a 10-point scale, depending on your institution.
How do I convert percentage marks to CGPA or GPA?
It depends on the scale:
– On a 10-point scale, divide percentage by 10 (e.g., 75% → 7.5).
– On a 4-point scale, divide percentage by 25 (e.g., 75% → 3.0).
Always confirm with your university, since some use custom formulas.
How do credit-weighted courses affect CGPA?
Courses with more credits have more impact on your CGPA. For example, a grade in a 4-credit course influences your CGPA more than a 1-credit elective. That’s why weighted calculations are crucial, and why using a calculator saves time.