CBSE Grading System Explained — 10-Point Scale 2026
Complete guide to CBSE's 10-point grading system, the official CGPA × 9.5 conversion formula, grade boundaries, and how the scheme has evolved through 2026.
CBSE — the Central Board of Secondary Education — is India's largest school board, with affiliated schools across India and abroad. CBSE introduced a 9-point letter-grade system for class X in 2010, briefly replaced marks with grades only, and re-introduced numerical marks in 2017 alongside grades. This guide walks through the CBSE system as it stands in 2026.
CBSE 9-point letter grade scale
| Grade | Grade points | Marks range |
|---|---|---|
| A1 | 10 | 91–100 |
| A2 | 9 | 81–90 |
| B1 | 8 | 71–80 |
| B2 | 7 | 61–70 |
| C1 | 6 | 51–60 |
| C2 | 5 | 41–50 |
| D | 4 | 33–40 |
| E1 | — | 21–32 |
| E2 | — | 0–20 |
A1 through D are passing grades; E1 and E2 indicate the candidate must re-appear in the subject. The grade points form the basis of the CGPA conversion below.
The official CBSE CGPA formula
Percentage = CGPA × 9.5
CBSE published this formula in 2011 with the explanation that the average percentage of the top 20% of students in five core subjects came out to 95% — so the multiplier was set at 9.5 for a 10-point CGPA.
Use the CBSE CGPA to percentage calculator on allgradecalculator.com for instant conversion.
Worked examples
- CGPA 9.6 → 9.6 × 9.5 = 91.2 %
- CGPA 8.4 → 8.4 × 9.5 = 79.8 %
- CGPA 7.2 → 7.2 × 9.5 = 68.4 %
- CGPA 6.0 → 6.0 × 9.5 = 57.0 %
Per-subject CGPA
CBSE awards a grade and grade point per subject as well as a cumulative CGPA. Multiply each subject's grade point by 9.5 to get an indicative percentage for that subject. Note: CBSE itself describes this as an indicative number — the official record is the letter grade.
Class X vs class XII
- Class X. CBSE issued CGPA only between 2010 and 2017. From 2017 onwards, marks are issued alongside grades. Older transcripts (from the 2010–2017 cohort) need conversion.
- Class XII. Marks have always been issued; no conversion needed.
Why CBSE conversion matters
A surprising number of admission portals — including state engineering counselling, private universities, and overseas applications — still ask for a percentage even when the candidate's CBSE class X result is on the CGPA scale. Using an unofficial conversion (multiplying by 10 instead of 9.5, for example) systematically over-states the percentage and can be flagged during verification.
CBSE grading vs ICSE
ICSE (CISCE) issues marks directly for both class X and class XII; the CGPA × 9.5 formula does not apply to ICSE. If your transcript is from CISCE rather than CBSE, use the percentage as printed.
CBSE and the rest of India
State boards in India typically issue marks rather than CGPA, but a small number have moved to CGPA-style grading. Each board has its own formula — check the back of your mark sheet or the board's regulations. Most universities (including CBSE) accept marks directly and don't need conversion.
Tips for CBSE class X students
- Know your formula. If you sat the exam between 2010 and 2017, your transcript only shows CGPA — applying for class XI or competitive exams may require a percentage.
- Don't round. Always cite the exact CGPA × 9.5 number on applications, not a rounded version.
- Improve subject-by-subject. Compartment / improvement exams allow you to re-take a subject. The replacement grade replaces the original.
Use these tools
Want to put this guide into practice? Try our free calculators — 30+ tools for US, Pakistan, and India students.