How to Calculate CGPA from SGPA? Easy Formula & Examples

Academic scores can often feel confusing, especially with different terms like SGPA and CGPA floating around.

If you are a student wondering how to calculate CGPA from SGPA, you are not alone. Many students get stuck understanding the connection between these two important metrics.

In this blog, we will make it simple for you. We will explain each concept clearly, show the formulas, and walk you through examples. By the end, you will easily know how to calculate your CGPA from your SGPA scores.

How to Calculate CGPA from SGPA

What is SGPA?

The term SGPA stands for Semester Grade Point Average. It measures your academic performance for a single semester. Each subject you study during the semester is assigned a Grade Point based on your performance.

The SGPA is the average of these Grade Points. It tells how well you have done overall in that particular semester.

For example:
If you take five subjects in a semester, the SGPA will reflect your performance across all five combined.

SGPA helps students know how they are progressing semester by semester.
It is also useful to monitor if you need to improve in upcoming semesters.

What is CGPA?

CGPA stands for Cumulative Grade Point Average. It represents the overall academic performance across multiple semesters.

Instead of showing just one semester's results, CGPA provides a broader view. It combines your SGPA scores from different semesters into a single number.

For example:
If you study for four years (eight semesters), your CGPA will reflect your average performance over all eight semesters.

Many universities, colleges, and even recruiters often ask for CGPA instead of individual semester grades.
It acts as a simple indicator of how consistently you have performed throughout your course.

Related: What is CGPA? CGPA Full Form, Meaning, Calculation & Importance

SGPA vs CGPA: Key Differences

Students often confuse SGPA and CGPA. While they are related, they are quite different in terms of their purpose and usage.

Here’s a detailed table showing the key differences:

Factor SGPA CGPA
Full Form Semester Grade Point Average Cumulative Grade Point Average
Meaning Measures academic performance in one semester Measures academic performance across all semesters
Calculation Average of grade points in one semester Average of all SGPAs across semesters
Use For semester results For final results and certifications
Frequency Calculated every semester Calculated after completion of course or multiple semesters
Importance Important for short-term academic evaluation Important for graduation, job placements, and higher studies

Both SGPA and CGPA are important. However, CGPA is what finally represents your academic journey.

How to Calculate CGPA from SGPA?

Calculating CGPA from SGPA is actually very easy once you know the steps.
You simply need to add your SGPA scores and divide by the number of semesters.

Here’s a simple breakdown:

Step 1: Add All SGPA Scores Together

Collect the SGPA of all the semesters you have completed.
Make sure you take the correct value, including decimals if any.
For example, if your SGPAs are 7.5, 8.0, and 7.8, then:
Sum of SGPA = 7.5 + 8.0 + 7.8 = 23.3

Step 2: Count the Total Number of Semesters

Next, count how many semesters these SGPAs represent. In the example above, there are 3 semesters.

Step 3: Divide the Total SGPA by the Number of Semesters

Now, divide the total SGPA by the number of semesters.
CGPA = 23.3 / 3 = 7.77
Thus, your CGPA is 7.77.
It’s that simple!

Example Calculations of CGPA from SGPA

Let's see a few detailed examples to understand the calculation better.

Example 1: CGPA for 2 Semesters

SGPA of Semester 1 = 8.2
SGPA of Semester 2 = 7.8

Calculation:
8.2 + 7.8 = 16.0
CGPA = 16.0 / 2 = 8.0
Thus, your CGPA is 8.0.

Example 2: CGPA for 4 Semesters

SGPAs: 7.5, 8.0, 7.6, and 8.2

Calculation:
7.5 + 8.0 + 7.6 + 8.2 = 31.3
CGPA = 31.3 / 4 = 7.825
Thus, your CGPA is 7.83 (rounded to two decimal places).

Example 3: Uneven SGPA Scores

SGPAs: 6.5, 7.2, 7.8, 6.9, 7.0, 7.3

Calculation:
6.5 + 7.2 + 7.8 + 6.9 + 7.0 + 7.3 = 42.7
CGPA = 42.7 / 6 = 7.116
Thus, your CGPA is approximately 7.12.

How to Convert CGPA into Percentage After Calculation?

Once you know your CGPA, you might want to find out your percentage. The process is simple if you know the right formula.

Here’s how:

  • Step 1: Know your university’s CGPA multiplier (CBSE uses 9.5, others may vary).
  • Step 2: Multiply your CGPA with the multiplier.
  • Step 3: The result is your percentage.

Example:
If your CGPA is 8.2, and your multiplier is 9.5,
8.2 × 9.5 = 77.9%
Thus, your percentage is 77.9%.

Note: Always check your university's official conversion rules.

Related Blog: How to Convert CGPA into Percentage? Simple Methods Explained

FAQs About Calculating CGPA From SGPA

Here are some common questions students ask about CGPA:

  • Q1. Can you calculate CGPA after each semester?
    Yes, you can calculate a running CGPA after every semester by using your SGPA scores so far.
  • Q2. Do all semesters have equal weight in CGPA?
    Usually, yes. However, if credit systems vary between semesters, universities may weight them differently.
  • Q3. Is it necessary to know CGPA during placements?
    Yes, most companies ask for CGPA on your resume or during job placements.
  • Q4. How accurate should the SGPA values be?
    You should use SGPA values as accurate as possible, including decimals. Small rounding errors can affect final CGPA.
  • Q5. Can SGPA be different if revaluation happens?
    Yes, if your marks change after revaluation, your SGPA will be updated accordingly.
    This may affect your CGPA too.

Conclusion

Understanding how to calculate CGPA from SGPA is an essential academic skill. It helps you track your overall performance and prepare well for final evaluations.

Always keep a record of your SGPAs after each semester. With simple steps and correct calculation, you can easily find your CGPA. This can give you a big advantage during higher studies and job applications!

Keep learning, and keep growing!