This CBSE Marks to Grade Converter is built strictly on the official CBSE 9-point grading system used across affiliated schools in India. Percentage, grades, grade points, CGPA estimates, and pass/fail status are all computed as per official CBSE guidelines for Class 10 and Class 12.

This tool is intended for quick reference and self-assessment. Final grades should always be confirmed against your official CBSE marksheet or school records. For the most current grading notifications, refer to the official CBSE website.

The CBSE grading system is a 9-point scale introduced by the Central Board of Secondary Education to evaluate student performance in a more holistic and standardised way. Rather than relying purely on raw marks, this system assigns grades and grade points to defined percentage ranges.

The CBSE grading system 2026 continues to follow this established framework across Class 10 and Class 12 board examinations, as well as internal school assessments. Understanding how marks map to grades helps students set meaningful academic targets and communicate their performance clearly to colleges, employers, and scholarship bodies.

Here is what the CBSE grading system covers:

CGPA (Cumulative Grade Point Average) is the single most important number on your CBSE result card. It summarises your overall performance across all subjects into one easy-to-read figure, and is used widely for college admissions, scholarship applications, and job eligibility checks.

To convert your CBSE marks to CGPA, first convert each subject's marks to a grade point using the official scale above, then apply the formula below.

Converting marks to percentage in CBSE is the first step before a grade can be assigned. The formula is straightforward and applies to any paper regardless of the total marks.

Formula: Percentage = (Marks Obtained ÷ Maximum Marks) × 100

Examples:

- Scored 76 out of 100 → (76 ÷ 100) × 100 = 76% → Grade B1 → Grade Point 8
- Scored 68 out of 80 → (68 ÷ 80) × 100 = 85% → Grade A2 → Grade Point 9
- Scored 38 out of 50 → (38 ÷ 50) × 100 = 76% → Grade B1 → Grade Point 8

This is why the CBSE grade calculator on this page works for papers with any maximum marks value — it always converts to a percentage first, then maps the percentage to the correct grade using the official CBSE marks vs grade chart.

One of the most searched questions around the CBSE grading system is what grade a specific mark corresponds to. Here are the most frequently asked conversions, all based on the official CBSE marks to grade table:

If you want to know how to convert marks to grade in CBSE manually, follow these four simple steps. This is the exact method the CBSE result grade calculator uses automatically:

Step 1: Note your marks obtained and the maximum marks for the paper.

Step 2: Calculate your percentage using the formula: Percentage = (Marks Obtained ÷ Maximum Marks) × 100.

Step 3: Match your percentage to the official CBSE marks vs grade chart. For example, 78% falls in the 71–80% range, giving you Grade B1.

Step 4: Record the corresponding grade point (B1 = 8). Repeat for all subjects, then average the grade points to find your CGPA.

Or simply use this CBSE marks to grade automatic tool above — it handles all four steps in real time as you type. For related academic calculations, you might also find our Salary Increment Calculator useful as you plan your career after graduation.

The CBSE grading system full details remain consistent across both Class 10 and Class 12 board examinations. Here is everything you need to know about how the system works in 2026:

Class 10 (Secondary): Students are assessed across five main subjects. The CGPA is calculated by averaging grade points across these subjects. An additional (sixth) subject's grade point may be included if it improves the CGPA.

Class 12 (Senior Secondary): The grading system follows the same 9-point scale. Percentage is directly mentioned on the Class 12 marksheet, in addition to grades and grade points.

Internal Assessment: CBSE includes internal assessment marks (school-based evaluation) alongside theory exam marks for computing the final grade in most subjects.

Compartment Exam: Students who fail in one subject (Grade E) are eligible for the CBSE compartment examination. Passing the compartment exam is required to clear that subject.

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Converting marks to grades manually is straightforward for a single subject, but it quickly becomes tedious and error-prone when you are tracking multiple subjects across multiple tests. Here is why using this free CBSE marks to grade software makes more sense: