Free calculator
ICSE and ISC percentage calculator, with the pass rules.
CISCE's regulations don't give a formula for an overall percentage. Enter your marks to see it across all subjects, or for English plus your best four (ICSE) or best three (ISC), and check them against the Council's own pass rules.
ICSE percentage calculator
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ICSE · English + best four
87.6%5 subjects
| Subject | % | 33% |
|---|---|---|
| English | 84% | Pass |
| Hindi | 79% | Pass |
| History, Civics and Geography | 72% | Pass |
| Mathematics | 91% | Pass |
| Science | 88% | Pass |
| Economics | 76% | Pass |
| Computer Applications | 96% | Pass |
Dimmed rows aren't counted in English + best four.
Meets the ICSE pass rule: 33% or more in 7 subjects, English included.
- All seven subjects
- 83.71%
- English + best four
- 87.6%
- Marks counted
- 438 of 500
How it's worked out
Add the marks you count, divide by their maximum.
None of these percentages is a CISCE rule. Use the one the school, college or form in front of you asks for.
When every subject is out of 100. With mixed maximums, the calculator tries every set of four and keeps the highest.
Percentages show two decimals, cut rather than rounded, so a cut-off never looks met when it isn't.
Plus a pass grade in SUPW and Community Service, which the school assesses. A subject at exactly the pass mark passes.
01ICSE, seven subjects: English plus best four.
- English 84, Hindi 79, History, Civics and Geography 72, Mathematics 91, Science 88, Economics 76, Computer Applications 96
- English 84 + Computer Applications 96 + Mathematics 91 + Science 88 + Hindi 79 = 438
- 438 ÷ 500 × 100 = 87.6%
- All seven: 586 ÷ 700 × 100 = 83.71%
87.6% for English plus best four, 83.71% across all seven. 7 of 7 subjects are at 33% or more, English included, so the pass rule is met.
02ISC, five subjects: English plus best three.
- English 78, Physics 66, Chemistry 72, Mathematics 85, Computer Science 93
- English 78 + Computer Science 93 + Mathematics 85 + Chemistry 72 = 328
- 328 ÷ 400 × 100 = 82%
82% for English plus best three. All five together are 78.8%.
03ISC, six subjects, one below 35%.
- English 70, Physics 34, Chemistry 58, Mathematics 62, Biology 66, Physical Education 81
- Physics 34 is below the ISC pass mark of 35%, though it would pass ICSE's 33%.
- 5 of 6 pass, English among them. The rule needs five.
Meets the ISC pass rule. 69.75% for English plus best three, 61.83% across all six.
No percentage formula in the regulations
CISCE's result documents show the result in the exam as a whole and a grade from 1 to 9 for each subject. We read the ICSE and ISC Regulations for 2028 and found no formula for an overall or best-of percentage. So whatever percentage you're asked for, the rule belongs to whoever is asking.
The calculator offers three ways of counting. All three are conventions, not Council rules:
- All subjects: every subject you enter.
- English plus best four (ICSE): five subjects, English always one of them.
- English plus best three (ISC): four subjects, English always one of them.
If a form asks for "best of five" or "best four", read whether English has to be included, and whether the number counts English. If its rule is different from all three, fill in only the subjects it wants and use All subjects.
The pass rules
These come straight from the regulations, and the calculator checks the first and third rows.
| Rule | ICSE (Class X) | ISC (Class XII) |
|---|---|---|
| Pass mark in each subject | 33% | 35% |
| Subjects taken | Six or more | English or Modern English, plus four or five electives. Six at most. |
| For a pass certificate | The pass standard in at least five subjects, English one of them | The pass standard in at least five subjects, English or Modern English one of them |
| Also needed | A pass grade (A to D) in SUPW and Community Service | A pass grade (A to D) in SUPW and Community Service |
So an ICSE candidate with six subjects can be below 33% in one and still pass, as long as it isn't English. An ISC candidate with only five subjects has to pass all five.
A similar rule decides promotion inside the school. To move from Class IX to X, a student needs at least 33% in five subjects including English on the cumulative average, and 75% attendance. From Class XI to XII, it's 35%.
The pass marks changed in 2018. From that year's exams, CISCE cut them from 35% to 33% for Class X and from 40% to 35% for Class XII, so older marksheets were issued under the higher marks.
What a subject's mark includes
At ICSE, every subject has internal assessment, done by the school through assignments, project work, practicals and course work. The Council adds those marks to its own exam: internal assessment is 20% of each subject in Groups I and II, and 50% in Group III. The ISC regulations don't set out a split.
So enter each subject's total, with any internal or practical marks already in it, and don't add them again. For a school exam marked out of something other than 100, change the "out of" box for that row.
What grades 1 to 9 mean
The grades are on a scale from 1 to 9, with 1 the highest. The regulations give their meaning as follows:
- ICSE. 1 and 2 are "very good". 3, 4 and 5 are a pass with credit. 6 and 7 are a pass. 8 and 9 are a fail.
- ISC. 1 to 6 are a pass with credit, and 1 and 2 also mean "very good". 7 and 8 are a pass. 9 is a fail.
- SUPW and Community Service. Graded A to E. A to D pass, E fails.
The regulations don't publish which marks give which grade, so this calculator doesn't turn marks into grades. A chart that gives a mark range for each grade isn't from the regulations.
Sources
We read each of these on 21 October 2026. Rules change, so check the latest circular before you rely on a detail.
- Regulations for Examination, Indian Certificate of Secondary Education (ICSE), Year 2028 (Chapter II: subjects, promotion, awards and results; Chapter IV: internal assessment), CISCE, January 2026.
- Regulations for Indian School Certificate Examination (ISC), Year 2028 (Chapter II: subjects, promotion, awards and results), CISCE, January 2026.
- Pass marks reduced in CISCE Examinations for Class X & Class XII, Press Information Bureau, Ministry of Education, 19 March 2018.
FAQ
Questions people ask about this.
Something we haven't covered? Ask us. We reply within one working day.
- How do I calculate my ICSE percentage?
- Add the marks of the subjects you're counting, divide by their total maximum, and multiply by 100. For English plus best four, that's English and your four highest other subjects, divided by 500 if each is out of 100. CISCE's regulations don't give a formula, so use the one your school or college asks for.
- Is ICSE percentage worked out on the best five or on all subjects?
- CISCE's regulations don't say. It depends on who's asking, so check the admission form or prospectus. If it says best five, read whether English has to be one of them.
- What is the pass mark in ICSE and ISC?
- 33% in each subject for ICSE and 35% for ISC, since the 2018 exams. To pass, a candidate needs that in at least five subjects including English, plus a pass grade in SUPW and Community Service.
- Can I fail one subject and still pass ICSE?
- Yes, if you have the pass mark in at least five subjects, English is one of them, and you have a pass grade in SUPW and Community Service. ICSE candidates take six or more subjects, so one can be below 33%.
- What marks do I need for grade 1 in ICSE?
- The regulations don't say. They give only what each grade means: 1 and 2 are very good, 3 to 5 a pass with credit, 6 and 7 a pass, and 8 and 9 a fail.
- Does the subject mark include internal assessment?
- At ICSE, yes. The Council adds the school's internal assessment marks to its own exam: 20% of each subject in Groups I and II, and 50% in Group III. Enter the subject's total, not the parts.
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