Many boards and colleges calculate your percentage from your best five subjects. Enter marks in every subject to see the best-five percentage and how it compares with all subjects together.
Enter marks in every subject.
Set how many subjects to count.
Read the percentage.
Percentage: Sum of best k marks ÷ (k × 100) × 100
Many Indian boards, colleges and admission portals calculate a Class 10 or Class 12 percentage from a student's best five subjects rather than all of them. This lets a student who took a sixth or additional subject drop the lowest score. The calculator sorts your marks, takes the top k subjects and shows the percentage, alongside the percentage over all subjects for comparison.
It is used during college admissions, especially for undergraduate programmes that publish merit lists based on best-of-five aggregates, and by students deciding which percentage to quote on a form.
The calculator picks purely by marks. Admission rules often add conditions, such as including a language or a particular core subject, which you must apply yourself.
1. List marks in every subject, converting any subject not out of 100 to a percentage first.
2. Sort the marks from highest to lowest.
3. Take the top k marks, usually k = 5.
4. Check the admission rule: if a language or specific subject must be included, swap it in for the lowest of the top k.
5. Percentage = sum of the chosen k marks ÷ (k × 100) × 100.
6. Compare with the all-subject percentage to see the difference.
Dropping the lowest marks can only raise or keep the average. If the dropped subject's mark is below the average of the rest, removing it raises the average; if it equals the average, nothing changes. So the best-five percentage is always at least the all-subject percentage. The gain is largest when one subject is much weaker than the others. With marks of 92, 85, 80, 78, 74 and 55, dropping the 55 lifts the percentage from about 77.3 to 81.8.
Admission notices often say 'best four subjects including English' or 'one language and four academic subjects'. The top-k by marks may not satisfy that. The correct method is to fix the required subjects first, then fill the remaining places with the highest remaining marks. Some universities also exclude vocational or additional subjects entirely, or add a deduction when the stream changes. The calculator's figure is the unconstrained maximum, which you then adjust.
Best-of-five assumes every subject is out of 100. If one subject is out of 80 or includes practicals scored separately, convert each to a percentage first, or add theory and practical to get a total out of 100 as the board prints it. Comparing a 68 out of 80 directly with 72 out of 100 would wrongly rank the first below the second, even though 85% beats 72%.
Tanvi's CBSE Class 12 marks are 84, 91, 67, 88, 79 and 95 across six subjects, and a Delhi college computes its merit list from the best five.
Sort marks from highest: 95, 91, 88, 84, 79, 67
Take the best 5: 95 + 91 + 88 + 84 + 79 = 437
Percentage: 437 ÷ 500 × 100 = 87.4%
For comparison, all subjects: 84%
Answer: Best 5 percentage 87.4%; All-subject percentage 84%
Leaving out a compulsory language that the admission rule requires in the five.
Mixing subjects out of 100 with subjects out of a different maximum.
Quoting the best-five figure where a form asks for the aggregate of all subjects.
Including an additional subject that the university excludes from calculations.
Calculating merit percentages for undergraduate admissions.
Deciding which percentage to quote on scholarship and admission forms.
Comparing best-four and best-five figures for different college rules.
Helping parents understand how a weak subject affects admission percentages.
Must English be included?
Some colleges and universities require a language in the best five. Check the admission notice.
Can I use marks out of 80?
Convert each to a percentage first.