What is the passing mark in CBSE?

For theory subjects, a student must score at least 33 out of 100 to pass. That maps to grade D (33–40) as the lowest passing grade. Anything below 33 falls into grade E1 (21–32) or E2 (0–20), both of which are marked as 'needs improvement' on the marks statement — they are not passing grades and the student is expected to clear the subject in a compartment exam.

How does CBSE calculate CGPA?

CGPA is the simple average of grade points across all subjects. If you scored grade points 10, 9, 8, 9, 8 in five subjects, CGPA = (10 + 9 + 8 + 9 + 8) / 5 = 8.8. The result is on the 10-point scale. Note that CBSE does NOT include the optional sixth (or seventh) additional subject in the CGPA — only the five main subjects count, with the optional subject only being used if it can replace a lower-grade main subject.

Is the CGPA × 9.5 formula official?

Yes. CBSE itself declared the CGPA × 9.5 conversion in the Examination Bye-Laws / CCE Notification of 2010, and the Board prints the formula on the back of every Class 10 marks statement along with a conversion certificate explaining how to convert the 10-point CGPA back to a percentage out of 100. The 9.5 multiplier was derived by averaging the marks of high-performing students between 2008 and 2010 — it is not an arbitrary number. Universities, employers, and admission portals accept the CGPA × 9.5 percentage as the official CBSE equivalent.

What happens if I fail in one subject?

If you score below 33 in any subject, you are considered 'failed' in that subject and the marks statement will show grade E1 or E2 instead of a passing grade. CBSE allows the student to appear in a compartment exam to clear the failed subject — passing it in compartment converts the failure into a regular pass for the overall result. A single failed subject does not invalidate your CGPA for the passed subjects, but you cannot move to the next class until you clear the compartment exam. Many universities will still consider you for admission while the compartment is pending, subject to a deadline for clearing it.

CBSE Grade Calculator — Class 10 & 12 Marks to Grade

CBSE Grade

📐 Math

CBSE Marks to Grade Calculator

Convert CBSE Class 10 / 12 board exam marks to the 9-point grade scale (A1 / A2 / B1 / B2 / C1 / C2 / D / E1 / E2). Used for the CBSE result format that shows letter grades alongside percentage marks.

Reviewed by the CalculatorKosh Editorial TeamUpdated June 2026Free · No sign-up

Subjects & marks

Enter marks out of 100 for each subject. Pass mark is 33.

Subject	Marks (/100)
	0100
	0100
	0100
	0100
	0100

Overall CGPA

(83.60% equivalent — CGPA × 9.5)

Total marks: 423 / 500 · Subjects: 5

Total Marks

423/500

Overall %

83.60%

All Passed

Yes

Grade	Marks	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	3 (fail)
E2	0–20	2 (fail)

Subject	Marks	Grade	Point	Status
English	85	A2	9	Pass
Hindi	78	B1	8	Pass
Mathematics	92	A1	10	Pass
Science	88	A2	9	Pass
Social Science	80	B1	8	Pass

Per-subject marks

Passed (≥ 33)Needs improvement (< 33)

Need the other direction?

Convert this CGPA to percentage for other boards (Anna Univ, VTU, Mumbai Engg, etc.) using the CGPA to Percentage Calculator.

How It Works

The CBSE 9-point grading scale (A1 through E2) was introduced with the CCE (Continuous and Comprehensive Evaluation) reform in 2010 for Class 10 and continues in the marks statements issued for Class 12 board results. Every subject is converted from marks-out-of-100 to a letter grade, and the average of grade points across all subjects gives you the CGPA on the 10-point scale.

The 9 grade bands

Grades are assigned by marks-range: A1 for 91–100, A2 for 81–90, B1 for 71–80, B2 for 61–70, C1 for 51–60, C2 for 41–50, D for 33–40, and the two failing bands E1 (21–32) and E2 (0–20). The grade point for each runs from 10 (A1) down to 2 (E2).

How CGPA and percentage work together

CGPA is the simple average of grade points across all subjects on the marks statement. CBSE publishes a single formula to convert CGPA back to an approximate percentage: Percentage = CGPA × 9.5. This rule is printed on the back of every Class 10 marks statement so universities and employers accept the converted percentage without question.

Pass mark

A theory subject is cleared at 33 / 100. Anything below that — E1 or E2 — counts as a failure and the student is expected to clear the subject through a compartment exam. The result above flags any failed subject in an amber callout (we deliberately avoid red to keep the tone informational, not alarming).

Frequently Asked Questions

CBSE assigns one of nine letter grades to each subject — A1 (91–100), A2 (81–90), B1 (71–80), B2 (61–70), C1 (51–60), C2 (41–50), D (33–40), E1 (21–32), and E2 (0–20). Each grade has a corresponding grade point: A1 = 10, A2 = 9, B1 = 8, B2 = 7, C1 = 6, C2 = 5, D = 4, E1 = 3, E2 = 2. The scale was formally adopted with the introduction of CCE in 2010 and continues to be used on Class 10 and Class 12 marks statements.