Attendance Calculator — can I bunk tomorrow?
The honest bunk planner: your current percentage, exactly how many classes you can skip without dropping below the requirement, and a straight answer when recovery is mathematically impossible.
Your attendance
Most Indian colleges require 75%. Some require 65% or 80% — check your handbook.
Enter your classes to see your bunk plan.
About this tool
The 75% attendance rule governs exam eligibility at most Indian colleges and universities — fall below it and you can be detained from writing end-semester exams. Yet almost nobody tracks it precisely. Students either over-bunk and discover the problem too late, or play it so safe they never miss a class they could have skipped.
This planner does the exact math for your situation. It computes your live percentage, then answers three distinct questions separately because they are genuinely different: how many consecutive classes you can bunk right now (attended stays fixed while held grows); how many total skips remain before semester end if you budget them across the term; and — if you're already below the line — how many consecutive attends it takes to climb back, or whether even perfect attendance can no longer save you this semester.
When the numbers are unrecoverable we say so plainly instead of hiding it, because the useful response at that point is administrative (condonation applications, medical certificates, talking to your professor) — not more math. All computation happens on your device; nothing is uploaded.
Worked example
| Input | Value |
|---|---|
| Attended / held | 40 of 50 classes |
| Semester plan · requirement | 100 classes · 75% |
At 40/50 you sit at 80% — comfortably safe, but the detail matters. You can bunk 3 classes in a row right now (40/53 = 75.47% stays above the line; a 4th drops you under). Budgeted across the whole semester you have 15 skips available before finals, and if you attend everything from here you finish on 90%. Now the recovery case: at 30 of 50 (60%) you're already below 75%, and the only way back is 30 classes attended in a row without missing one — which lands exactly on 75% (60/80). That's the difference between a casual skip budget and a commitment, and it's why the two counters are shown separately.
How to use
- 1Enter the number of classes held so far this semester.Screenshot slot: 01-attendance-calculator-enter-the-number-of.pngReplace with a real capture.
- 2Enter how many of those you attended.Screenshot slot: 02-attendance-calculator-enter-how-many-of.pngReplace with a real capture.
- 3Set the total classes planned for the whole semester (your timetable's count).Screenshot slot: 03-attendance-calculator-set-the-total-classes.pngReplace with a real capture.
- 4Confirm the required percentage — 75% is typical, but some colleges use 65% or 80%.Screenshot slot: 04-attendance-calculator-confirm-the-required-percentage.pngReplace with a real capture.
- 5Read the zone indicator and the three counters: bunkable now, skips left this semester, and attends needed to recover.Screenshot slot: 05-attendance-calculator-read-the-zone-indicator.pngReplace with a real capture.
FAQs
How many classes can I bunk if I'm at exactly 75%?
Zero. At exactly 75%, missing any single class drops you below the line (attended stays the same while held increases). The tool shows an 'at threshold' warning at this point — attend a few first to rebuild a buffer.
I'm already below 75%. Can I recover?
It depends on how much of the semester remains. Attending classes raises both attended and held counts, which pulls your percentage toward 100% from below. The tool tells you the exact number of consecutive classes needed — or warns you honestly when even attending everything left cannot reach the requirement.
Does bunking affect my percentage the same as a class I attended being cancelled?
No — and that matters. When you bunk, 'held' increases but 'attended' doesn't. When a lecture is cancelled for everyone, neither count changes and your percentage is untouched. This is why the planner asks for held (not scheduled) classes.
What percentage should I enter as the requirement?
Use whatever your college's regulations state — 75% is the most common bar, but 65% exists in some autonomous institutions and 80% for labs or specific programmes. If you're unsure, check your academic handbook or ask your class advisor; using the wrong threshold makes every other number wrong.
Is the 'skips left this semester' number different from 'bunkable now'?
Yes. 'Bunkable now' is the consecutive streak you can miss immediately. 'Skips left this semester' assumes you distribute skips optimally across all remaining classes — it's larger because future attends raise both numerator and denominator. Budget with the semester number, decide day-to-day with the streak number.
Does medical leave count differently?
Not in this calculator — most colleges still count medically-absent days as absences unless condonation is approved. If your institution has a duty-leave or exemption policy, treat exempted classes as neither held nor attended when entering numbers here.
Do you store my attendance numbers?
Your last inputs are saved only in your own browser's localStorage so the page remembers them next visit. They never leave your device — there is no server component in this site at all. Clearing your browser data removes them completely.