What Are CBSE Passing Marks?
Every year, millions of students across India appear for the CBSE board examinations in Class 10 and Class 12. One of the most common questions students and parents ask is: how many marks do I need to pass? Understanding the CBSE passing marks criteria is essential for exam preparation, stress management, and planning for the future.
The Central Board of Secondary Education (CBSE) has a clear and consistent rule: students must score a minimum of 33% marks in each subject to be declared as passed. However, the way this 33% is calculated varies depending on the total marks of the paper – whether it is out of 70, 80, or 100.
In 2026, CBSE has also introduced a stricter independent passing criterion where students must pass the theory and internal assessment components separately. This means you can no longer compensate for a poor theory score with high internal marks.
CBSE Passing Marks: Quick Reference
The table below provides a quick summary of the minimum passing marks required based on the total marks of the paper.
Total Marks | Passing Marks | Passing % | Applicable For |
100 | 33 | 33% | English, Hindi, SST (Class 10) |
80 | 27 | 33% | Most Class 10 & 12 Theory Papers |
70 | 23 | 33% | Physics, Chemistry, Biology (Class 12) |
30 (Practical) | 10 | 33% | Science Practicals (Class 12) |
20 (Internal) | 7 | 33% | Internal Assessment (Class 10) |
âš Important: From 2026, CBSE requires students to independently clear both theory and internal assessment/practical components. Failing either one results in a compartment, even if your combined total exceeds 33%. |
Want to quickly convert your CBSE marks into a percentage? Use EuroSchool’s free Marks Percentage Calculator to instantly find out your percentage based on marks obtained and total marks – no manual calculations needed.
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CBSE Passing Marks Out of 100
For subjects where the total marks add up to 100 (combining theory and internal assessment), a student needs at least 33 marks out of 100 to pass. This is the most common marking structure in CBSE board exams.
In Class 10, subjects like English, Hindi, Mathematics, Science, and Social Science are all evaluated out of 100 marks. This total is split into 80 marks for the board examination (theory) and 20 marks for internal assessment.
However, it is crucial to understand that the 33 marks cannot come from just one component. Under the 2026 rules, students must secure a minimum of 27 marks out of 80 in the theory paper and at least 7 marks out of 20 in internal assessment, independently.
For Class 12, subjects that do not have practical examinations (such as English, Hindi, History, Political Science, and Economics) are also evaluated out of 100 marks, and the same 33% passing criterion applies.
CBSE Passing Marks Out of 80
In the CBSE marking system, most subjects in Class 10 and many in Class 12 have a theory paper worth 80 marks. To pass the theory component, a student must score at least 27 marks out of 80 (which is 33% of 80, rounded up from 26.4).
This 80-mark theory paper covers the entire syllabus of the subject and typically includes a mix of multiple-choice questions (MCQs), short-answer questions, long-answer questions, and case-based or competency-based questions.
Subjects With 80-Mark Theory Papers
In Class 10, the following subjects have an 80+20 marking structure: Mathematics, Science, Social Science, English, and Hindi. In Class 12, subjects like Accountancy, Business Studies, Economics, History, Geography, and Political Science follow the same 80+20 pattern.
Component | Total Marks | Passing Marks |
Theory (Board Exam) | 80 | 27 |
Internal Assessment | 20 | 7 |
Overall Total | 100 | 33 |
✔ Tip: Even though the mathematical calculation of 33% of 80 gives 26.4, CBSE rounds this up to 27. Always aim for at least 27 marks in any 80-mark theory paper to be safe. |
CBSE Passing Marks Out of 70
Several Class 12 science subjects have a 70+30 marking structure, where the theory paper is worth 70 marks and the practical examination is worth 30 marks. To pass the theory section of these subjects, students must score at least 23 marks out of 70.
Subjects With 70-Mark Theory Papers
The following Class 12 subjects use the 70+30 pattern: Physics, Chemistry, Biology, Computer Science, Informatics Practices, and certain other elective subjects with a practical component.
Component | Total Marks | Passing Marks |
Theory (Board Exam) | 70 | 23 |
Practical Exam | 30 | 10 |
Overall Total | 100 | 33 |
âš Important: Students must pass theory and practicals independently. Even if you score 28 out of 30 in practicals, you will still need 23 out of 70 in theory to pass the subject. A strong practical score cannot compensate for a weak theory performance. |
CBSE Passing Marks for Class 10 (2026)
The CBSE Class 10 board examination is evaluated out of 100 marks for each subject, divided into 80 marks for the written board examination and 20 marks for internal assessment. Students must pass all five compulsory subjects to be declared as having passed Class 10.
Passing Criteria for Class 10
- Score at least 33% (33 marks out of 100) in each subject overall.
- Score at least 27 marks out of 80 in the board theory paper (independently).
- Score at least 7 marks out of 20 in internal assessment (independently).
- Pass all five compulsory subjects: Language 1, Language 2, Mathematics, Science, and Social Science.
- An optional sixth subject can replace one failed compulsory subject.
Subject-Wise Passing Marks for Class 10
Subject | Theory | Pass (Theory) | Internal | Pass (IA) |
Mathematics | 80 | 27 | 20 | 7 |
Science | 80 | 27 | 20 | 7 |
Social Science | 80 | 27 | 20 | 7 |
English | 80 | 27 | 20 | 7 |
Hindi | 80 | 27 | 20 | 7 |
What Are Internal Assessment Marks? Internal Assessment (IA) marks for Class 10 are based on three components: Periodic Tests (best 2 out of 3 tests, worth 5 marks each for a total of 5 marks), Portfolio and Subject Enrichment Activities (5 marks each), and multiple assessments conducted throughout the academic year. These are evaluated by your school teachers. |
CBSE Passing Marks for Class 12 (2026)
The CBSE Class 12 board examination follows the same fundamental rule of 33% minimum marks. However, the marking structure varies significantly across subjects and streams. Students must achieve at least 33% in each subject, with theory and practical/internal components cleared independently.
Stream-Wise Passing Marks for Class 12
Science Stream (Physics, Chemistry, Biology / Mathematics)
Subject | Theory | Pass | Practical | Pass | Total | Overall Pass |
Physics | 70 | 23 | 30 | 10 | 100 | 33 |
Chemistry | 70 | 23 | 30 | 10 | 100 | 33 |
Biology | 70 | 23 | 30 | 10 | 100 | 33 |
Mathematics | 80 | 27 | 20 | 7 | 100 | 33 |
English | 80 | 27 | 20 | 7 | 100 | 33 |
Commerce Stream (Accountancy, Business Studies, Economics)
Subject | Theory | Pass | Internal/Pr. | Pass | Total | Overall Pass |
Accountancy | 80 | 27 | 20 | 7 | 100 | 33 |
Business Studies | 80 | 27 | 20 | 7 | 100 | 33 |
Economics | 80 | 27 | 20 | 7 | 100 | 33 |
CBSE Grading System Explained
CBSE uses a 9-point grading scale to evaluate student performance in both Class 10 and Class 12. Instead of simply reporting marks, CBSE assigns grades based on a positional system where students are ranked relative to all other passed candidates in a particular subject.
The passing grade is D (Grade Point 4), which corresponds to marks between approximately 33% and 40%. Any student scoring below 33% receives a Grade E, which is considered a fail.
Grade | Grade Point | Marks Range | Status |
A1 | 10 | 91 – 100 | Outstanding |
A2 | 9 | 81 – 90 | Excellent |
B1 | 8 | 71 – 80 | Very Good |
B2 | 7 | 61 – 70 | Good |
C1 | 6 | 51 – 60 | Above Average |
C2 | 5 | 41 – 50 | Average |
D1 | 4 | 33 – 40 | Pass |
D2 | 3 | 21 – 32 | Needs Improvement |
E | – | Below 21 | Fail |
✔ Tip: CBSE uses a relative (positional) grading system for board results. The grades in the table above are indicative ranges. Actual grade cutoffs vary each year depending on the overall performance of all students who appeared in that subject. |
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CGPA Calculation: Your Cumulative Grade Point Average is calculated by adding the grade points of your best 5 subjects and dividing by 5. To convert CGPA to an approximate percentage, multiply by 9.5. For example, a CGPA of 8.6 translates to approximately 81.7% (8.6 × 9.5 = 81.7).
What Happens If You Don’t Meet the Passing Marks?
Failing to meet the minimum passing marks in CBSE exams does not necessarily mean losing an entire academic year. CBSE provides several support mechanisms for students who fall short.
Compartment Examinations
If a student fails in one or two subjects, they are eligible to appear for a compartment examination (also called Phase 2 or supplementary exam), which is typically held in June or July of the same year. The passing criteria for compartment exams remain the same – 33% in each component.
Grace Marks Policy
CBSE may award grace marks (typically 1 to 5 marks) to students who narrowly miss the passing criteria in a single subject. This is done at the board’s discretion and is not guaranteed. Grace marks can be applied to theory, practical, or both components to help a student reach the passing threshold.
Essential Repeat
Students who fail in three or more subjects in Class 10 are not eligible for compartment exams and must repeat the entire academic year. For Class 12, students failing in more than one subject may need to re-appear in the next year’s board examination.
Class 10: Additional Subject Advantage If you fail in one compulsory subject but pass in an additional/optional sixth subject, the sixth subject can replace the failed subject in your result. This is a valuable safety net that many students are not aware of. |
Summary: CBSE Passing Marks at a Glance
Criteria | Requirement |
Minimum overall passing percentage | 33% in each subject |
Passing marks out of 100 | 33 marks |
Passing marks out of 80 (theory) | 27 marks |
Passing marks out of 70 (theory) | 23 marks |
Passing marks out of 30 (practical) | 10 marks |
Passing marks out of 20 (internal) | 7 marks |
Independent passing (theory + practical) | Yes – both must be cleared separately |
Compartment exam eligibility (Class 10) | Fail in up to 2 subjects |
Compartment exam eligibility (Class 12) | Fail in 1 subject |
Grace marks | 1–5 marks (discretionary, single subject) |
Tips to Ensure You Meet the CBSE Passing Marks
- Never neglect internal assessments. These 20 marks are relatively easier to secure and provide a cushion for your overall score.
- Take practical exams seriously. For Class 12 Science students, the 30 marks from practicals can significantly boost your total. Practicals must also be passed independently.
- Practice with sample papers. CBSE releases sample papers and marking schemes every year. Solving these helps you understand the exam pattern and scoring criteria.
- Attempt every question. Even partial answers can earn step marks in CBSE exams. Leaving a question blank guarantees zero marks for that question.
- Focus on NCERT textbooks. CBSE board questions are predominantly based on NCERT content. Mastering your NCERT books is the most reliable preparation strategy.
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