Percentile
A percentile indicates a student’s relative standing by showing the percentage of candidates who scored equal to or below them. Unlike a percentage of marks, it depends on the whole cohort’s performance, so a 90th percentile means the student did better than 90% of test-takers. It is widely used in competitive and standardised assessments.
A student’s rank position — the percentage of candidates who scored at or below their score.
Why it matters
A percentile is a statement about rank, not about how much a student knows, and it cannot be derived from a mark sheet. Class teachers and counsellors field this every entrance-exam season, and an explanation given wrongly to a parent at result time is very hard to walk back once the family has fixed on a number.
In practice
- The National Testing Agency computes it as 100 x (candidates in that session scoring equal to or below the candidate) divided by the total candidates in that session.
- Because it is computed within a session, the highest scorer in every shift of a multi-session paper receives a percentile of 100.
- NTA adopted percentile scoring precisely to normalise across sessions, so candidates are neither helped nor penalised by getting a harder question paper.
- Percentiles are not additive: averaging them across subjects, or comparing this year's to last year's, produces a number with no defensible meaning.
- School-level tests rarely justify percentiles — with a cohort of forty or fifty, two absentees visibly move the figure.
Common mistakes
- Quoting a percentile from an internal test where the cohort is far too small for the number to carry information.
- Reading a fall in percentile as a fall in learning when the cohort has simply become stronger.
Common questions
What is the difference between percentage and percentile?
A percentage is what the student scored — marks obtained out of marks possible. A percentile is where the student stands — the proportion of candidates who scored at or below them. A student can score 70% and still sit at the 99th percentile if the paper was hard for everyone.
Can a percentile be converted back into marks?
Not reliably. The mapping depends on the score distribution of that specific session, which changes every time the test is administered. For multi-session papers NTA publishes the percentile rather than the raw score for exactly this reason — the two are not interchangeable across shifts.
Why did two students with the same marks get different percentiles?
Almost always because they sat different sessions of the same exam. The percentile is calculated within a session against the candidates who appeared in that session, so an identical raw score maps to different percentiles where the papers differed in difficulty.
Edutris turns entered marks into grades, CGPA and finished report cards automatically — one entry, no transcription.
Related terms
CGPA (Cumulative Grade Point Average)
The average of grade points across main subjects; CBSE converts it to a percentage by multiplying by 9.5.
Grading System (A1–E)
CBSE’s nine-point absolute grading scale from A1 (91–100%) down to E, replacing raw marks with grade bands.
Grace Marks
A small number of marks a board adds under defined rules to help a student narrowly clear a subject.
Board Examination
The external, board-conducted exams (typically Class 10 and 12) whose results are certified by the education board.
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