CBSE Marks to Grade Calculator
Type marks out of 100 and get the 9-point scholastic letter grade and grade point instantly — with the full band table on the page.
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- Live as you type
- 9-point scale
Absolute CBSE scholastic grade bands (Class 10 historical / CGPA era): A1 91–100 (GP 10) … D 33–40 (GP 4); E1/E2 below 33. Board Class X/XII results today primarily use relative cohort grading (A1–D2 by rank among passed candidates).
| Grade | Marks | Grade point |
|---|---|---|
| A1 | 91–100 | 10 |
| A2 | 81–90 | 9 |
| B1 | 71–80 | 8 |
| B2 | 61–70 | 7 |
| C1 | 51–60 | 6 |
| C2 | 41–50 | 5 |
| D | 33–40 | 4 |
| E1 | 21–32 | — |
| E2 | 0–20 | — |
A1–E2
Absolute scholastic bands
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How CBSE marks map to grades
Each block explains one part of how this works and how to read the result.
Absolute scholastic bands
Absolute CBSE scholastic grade bands (Class 10 historical / CGPA era): A1 91–100 (GP 10) … D 33–40 (GP 4); E1/E2 below 33. Board Class X/XII results today primarily use relative cohort grading (A1–D2 by rank among passed candidates).
Enter a mark and the matching band highlights in the table: A1 through D carry grade points 10 down to 4; E1 (21–32) and E2 (0–20) are below the pass band.
Relative board grading is different
For Class X and XII board results, CBSE primarily awards grades by ranking all passed candidates in a subject and assigning A1–D2 in successive eighths (with E for essential repeat). That cohort method can produce different letter grades than a fixed marks table for the same raw score.
From grade point to percentage
When your overall result is a CGPA built from grade points, convert with the CBSE formula Percentage = CGPA × 9.5 using the CGPA to Percentage Calculator.
Frequently asked questions
What are the CBSE absolute grade bands for marks?
The widely cited scholastic bands are: A1 91–100 (GP 10), A2 81–90 (GP 9), B1 71–80 (GP 8), B2 61–70 (GP 7), C1 51–60 (GP 6), C2 41–50 (GP 5), D 33–40 (GP 4), and E1/E2 below 33 (no grade point for CGPA).
Is board Class 10/12 grading the same as these absolute bands?
Not exactly. CBSE Class X/XII board results primarily use relative (cohort) grading — passed candidates are ranked and awarded A1–D2 in eighths — per CBSE grading circulars. Absolute bands remain the historical scholastic / CGPA-era lookup students often need for school assessments.
What grade point does 87 marks get?
87 falls in A2 (81–90), grade point 9. Enter any mark above and the calculator updates live.
What is the passing mark for a subject?
Under the absolute scholastic bands, D (33–40) is the pass band with grade point 4. Marks below 33 map to E1 or E2 and do not carry a grade point for CGPA averaging.
How do I convert CGPA to percentage after grading?
If your result is reported as CGPA, use the CGPA to Percentage Calculator (CBSE formula CGPA × 9.5). This marks→grade tool maps a single subject's marks to a letter grade and grade point.
Related CGPA, SGPA & percentage calculators
More free calculators and formats in the same lane.
For developers & AI agents
The CBSE Marks to Grade Calculator (9-Point Scale) is also available as a free, unauthenticated JSON API — no API key, no sign-up, CORS enabled for all origins. Send a GET request with the parameters below and receive the computed result as JSON, including the source of the format or formula used. Invalid input returns HTTP 400 with a JSON { "error": "..." } body.
GET https://knwdle.com/api/tools/marks-to-grade-calculator-cbse| Parameter | Required | Description |
|---|---|---|
marks | Yes | Subject marks out of 100 (0–100). |
Request:
GET https://knwdle.com/api/tools/marks-to-grade-calculator-cbse?marks=87
Response:
{
"tool": "marks-to-grade-calculator-cbse",
"input": {
"marks": 87
},
"grade": "A2",
"gradePoint": 9,
"range": "81–90",
"label": "Excellent",
"source": "Absolute CBSE scholastic grade bands (Class 10 historical / CGPA era): A1 91–100 (GP 10) … D 33–40 (GP 4); E1/E2 below 33. Board Class X/XII results today primarily use relative cohort grading (A1–D2 by rank among passed candidates)."
}
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