How to Calculate Percentage of Class 10 CBSE Board?

One of the most common queries about the board exams is how to calculate percentage of class 10 CBSE board. It is essential for students to know their CBSE class 10th percentage as it can help them evaluate their academic performance accurately. Furthermore, knowing the percentage will help them predict the stream they can get in class 11th.  Students must note that calculating the percentage for CBSE class 10th board exams is a straightforward process. The basic thing one must know is the marks obtained in each subject and the maximum marks. 

CBSE Class 10 Exam 2025 uses a 9-point grading system from A1 to E2. The grades are assigned on the basis of student's performance in the exam, with A1 being the highest and E1 and E2 being the lowest grade. Apart from this, the CBSE class 10 marking scheme includes theory + internal assessment marks. While the theory paper is conducted for 80 marks, the internal assessment is for 20 marks, accounting for a total of 100 marks. Based on the marks obtained by students, they can calculate their class 10th percentage for CBSE.

Check on this page to understand how to calculate CBSE 10th percentage, along with the detailed CBSE 10th grading and marking system.

CBSE Class 10 Marking Scheme & Total Marks 

Before understanding how to calculate percentage of class 10 CBSE, it is also essential to have an understanding of marking scheme and total marks. As per CBSE class 10 marking scheme, 80 marks are allotted to the theory paper, and 20 marks are for the practical/ internal assessment. Hence, the total marks for each subject is 100 marks. Also, the pass percentage for every subject is 33%. This means, student needs to score at least 33% in the theory paper and 33% in the practical/ internal assessment to pass each subject. 

However, CBSE Class 10th Passing Marks 2025 also differs for both theory and practical exams. For the theory exam, the minimum passing marks is 27 marks while for the practical exam, the minimum passing marks is 6 marks.

Understanding Subject-Wise Marks Distribution

As per CBSE Class 10 Exam Pattern 2025, there are 5 main subjects. These are Social Science, Science, Mathematics, English, and Hindi/ Sanskrit/ Other Languages. The table below shares the subject-wise marks distribution pattern for class 10th:

In some cases, students may opt for an additional sixth subject. This 6th subject can be computer application, vocational subject, or any other subject. The maximum marks for such subjects is also 100. 

Internal Assessment & Final Exam Weightage 

In CBSE class 10th, 20 marks are reserved for internal assessment, and the final board paper is of 80 marks (theory component). While calculating percentage of class 10 CBSE board, it is required to consider the marks of both the internal assessment and the final exams. While the theory exams are of 80 marks for each subject, the internal assessment scores are dependent on tasks like notebook submissions, practical work, lab work, periodic tests, etc. Given below is the internal assessment and final exam weightage for class 10 CBSE exam:

Step-by-Step Process to Calculate Percentage of Class 10 CBSE

The students who wish to know how to calculate CBSE 10th percentage must follow this step-by-step process – 

• Step 1 – Calculate the total marks obtained in the best 5 subjects. 

• Step 2 – Calculate the total maximum marks for all 5 subjects. Each subject is for 100 marks so it will be 100 x 5 = 500 marks.

• Step 3 – Divide the total marks obtained in the 5 subjects by the total maximum marks of 5 subjects.

• Step 4 – Multiply the value obtained in Step 3 by 100. This will be the real percentage for the class 10th CBSE board. 

Formula for Percentage Calculation

The simple formula for how to calculate percentage of class 10 CBSE board is given below:

Let:

• T = Total marks obtained in the best 5 subjects

• M = Total maximum marks for all subjects

The formula for calculating the percentage (P) will be:

Example Calculation Using Marks Obtained 

Let’s suppose a student has the following score –

• Hindi – 87

• Social Science – 82 

• Science – 88

• Mathematics – 90

• English – 85 

Hence, the total marks obtained = 87+82+88+90+85 = 432 

And, the total maximum marks (for best 5 subjects) = 500

Therefore, Percentage = (432 / 500) x 100 = 86.4%

How to Calculate Percentage of Class 10 CBSE with 6 Subjects 

The above section overviews how to calculate percentage in case of 5 subjects. But a lot of students would wonder how to calculate percentage of class 10 CBSE board if there are 6 subjects. One must know that CBSE considers the scores of the best 5 subjects. Hence, even if the student has taken 6 subjects then also the percentage will be calculated by adding the best 5 subjects only. Thus, students can exclude the lowest-scoring subject while adding the maximum marks obtained. Then, use the same formula as described in the above section. 

How to calculate CBSE 10th Percentage and Grading System 

The CBSE Grading System 2025 for Class 10 works on a 9-point scale. The highest grade score is A1, and the lowest ones are E1 and E2 (which means a student has failed). The table below overview more details related to the CBSE 10th grading system.

CBSE Class 10 Percentage from CGPA 

Students can also calculate cbse 10th percentage from the CGPA obtained. CGPA refers to the grades obtained by students in the exam. CBSE class 10 percentage from CGPA is calculated by adding grade points of the best 5 subjects. The step-by-step process to calculate CBSE class 10 percentage from CGPA is explained below:

• Step 1 – Add the grade points of the best 5 subjects. 

• Step 2 – Divide the total value obtained in Step 1 by 5.

• Step 3 – Multiply the value obtained in step 2 by 9.5. This will be the actual percentage derived from CGPA. 

What is CGPA & How is It Used? 

CGPA refers to Cumulative Grade Point Average. It is the average of grade points obtained in the CBSE 10th exam for different subjects. The main use of the CGPA is to determine the exact percentage scored in a respective class. To calculate CGPA, students need to add the grade points earned in their best five subjects and then divide that sum by the number of subjects (i.e. 5).

Official CBSE CGPA to Percentage Formula

The official CBSE CGPA to Percentage formula is – 

Example Calculation of CGPA to Percentage 

Let’s say a student has the following grade points in the best 5 subjects –

• Social Science – 9

• Hindi – 8

• Mathematics – 8

• Science – 9

• English – 7 

The sum of the grade points in the best 5 subjects is = 9+8+8+9+7= 41

The CGPA will be 41/5 = 8.2 

The percentage will be 8.2 x 9.5 = 77.9% 

Why CBSE uses 9.5 instead of 10 to Calculate Percentage from CGPA 

CBSE uses 9.5 instead of 10 in the CGPA conversion because it is a more accurate criterion to calculate percentage. Using a 9.5 value provides a fair evaluation of a student’s academic performance. Hence, CBSE uses the 9.5 conversion factor to provide rational results.

CBSE Class 10 Percentage from CGPA Chart

If the students are still confused about how to calculate percentage of class 10 CBSE board then here is the percentage from the CGPA chart for that – 

Also Read: CBSE Class 10 Result 2025

Hence, if someone is confused about how to calculate percentage of class 10 CBSE board then the process is very simple. Using the above formula, percentage can be calculated in simple steps. The main thing is that a candidate must know his/her CGPA or marks obtained in the best 5 subjects.