Education
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Attendance Percentage Calculator
Attendance % + how many classes you can skip (or must attend) to hold 75%. Accurate, instant and free — for India.
Attend the next 20 classes to reach 75%.
Attendance now
68.75%
To reach target
20
Can skip now
0
You must attend more to catch up
Bunk planner
Of the next 20 classes, you can skip 0 and still finish at or above 75% — assuming you attend the rest.
How the 75% rule works
Tracking your marks too? Convert them with the Marks Percentage Calculator or roll results into a CGPA.
How attendance % and the skip-count are calculated
Your attendance is just classes attended ÷ classes held. From that, and your target (usually 75%), the tool works out both how many classes you must attend to catch up and how many you can safely skip.
Attendance now
attended ÷ held × 100
attendance % = (attended ÷ held) × 100
Only classes actually conducted count in the denominator.
Can skip now
floor(attended ÷ t − held)
skip = floor(attended ÷ t − held)
t is the target as a fraction (0.75 for 75%). Below target → must-attend instead.
- 1Current standing: (55 ÷ 80) × 100 = 68.75% — below the 75% bar.
- 2Classes to attend in a row: ceil((0.75 × 80 − 55) ÷ (1 − 0.75)) = ceil((60 − 55) ÷ 0.25) = 20 consecutive classes to reach 75%.
Why 75% — and what the plan assumes
Most Indian universities require at least 75% attendance per subject to be exam-eligible. The skip and must-attend numbers are a plan, not a guarantee — read the assumptions before you bunk.
75% is the standard exam-eligibility bar
The plan assumes consecutive classes
Frequently asked questions
Attendance percentage is simply the classes you attended divided by the total classes held, times 100: attendance % = (attended ÷ held) × 100. If 55 of 80 classes have been held and you were present for those 55… wait — you attended 55 out of 80 held, that is (55 ÷ 80) × 100 = 68.75%. Only classes actually conducted count in the denominator; cancelled or not-yet-held classes are not included.
Once you are already at or above your target, you have a cushion. The number you can skip right now is floor(attended ÷ target − held), where target is written as a fraction (0.75 for 75%). For example, with 70 attended out of 80 held, you are at 87.5%, so you can skip floor(70 ÷ 0.75 − 80) = floor(93.33 − 80) = 13 more classes before you touch 75%. Each class you actually skip lowers this cushion by one.
Most Indian universities and the UGC-linked regulations require students to attend at least 75% of classes in each subject to be eligible to sit the end-semester examination. Some institutions allow condonation up to 65% on medical or genuine grounds, but 75% is the standard bar. Always confirm the exact rule and any medical-leave relaxation in your own college handbook, because the threshold and condonation policy vary by university.
The bunk planner answers the practical question: of the next N classes I know are coming up, how many can I safely miss? It computes floor((attended + N) − target × (held + N)), which is how much slack you would have if you attended all N upcoming classes, expressed as the number you can instead skip. It assumes you attend every class you do not deliberately skip — so it is a best-case plan for consecutive upcoming classes, not a promise.
Yes. The must-attend and can-skip figures treat each planned class as either fully attended or fully missed, one after another, with no cancellations. Real timetables have holidays, extra classes, and cancellations that shift the maths, so treat the numbers as a planning guide. Recompute after each week with your updated attended and held counts to stay accurate.
Yes — it is completely free with no sign-up, and every calculation runs entirely in your browser. Nothing you enter is sent to a server or stored.
Method, assumptions & references
Methodology: attendance % = attended ÷ held × 100; classes to attend to reach target t = ceil((t × held − attended) ÷ (1 − t)); classes skippable now = floor(attended ÷ t − held); bunk planner over N upcoming = floor((attended + N) − t × (held + N)). Figures assume consecutive classes with no cancellations. All calculations run client-side; nothing is stored. The 75% threshold and any condonation policy vary by university — confirm against your own college rules.
Cross-links
How we calculate this
Reviewed by Reckonist Editorial · Last reviewed 4 July 2026. Figures follow the methods and sources set out in our editorial standards.
The attendance formula is simple arithmetic, but the minimum-attendance threshold (commonly 75%), condonation limits, and how medical or duty leave is counted vary by university and are set by your institution. Always confirm against your own official college rules. This is guidance only, not an official attendance record.
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