Bunk Calculator: Can I Skip Class Today?

How many classes you can still bunk (or must attend to recover), semester planner, and KTU attendance marks.

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Your subjectsone line per subject; colleges check each

Your university

heldattendedest. leftmin %76% · 0 safe

Est. left is optional: your guess of how many classes of that subject remain this semester. Min % is optional too: leave it blank to use the default below.

Minimum attendance (default for every subject)

KTU: 75% to sit the exam (65% with condonation). Attendance marks are full at 90% and drop proportionally below it. A subject with its own rule (labs are often stricter) can set its own min % on its row.

Exactly on the line

No bunks left. Zero.

One more bunk and it's over. Attend tomorrow. Yes, tomorrow.

Right now

75.6%

If you bunk tomorrow

73.9%

If you attend tomorrow

76.1%

Margin

+0.6%

If you want to keep	Bunks in a row	KTU attendance marks
90% · full marks	need 65 first	10.0 / 10
85%	need 29 first	9.4 / 10
80%	need 10 first	8.9 / 10
75% · exam eligibility	0	8.3 / 10
65% · with condonation	7	7.2 / 10

Marks column follows the KTU 2019 scheme (attendance ÷ 90 × 10, capped at 10); colleges may round differently. Right now you are at 8.4 / 10.

Tap ✓ attended / ✗ bunked on a subject as the week goes by. It remembers.

Your bunk cardpost it, send it to the group, blame the math

Send on WhatsApp

The link carries your numbers, so whoever opens it sees your card, then tries their own.

How the bunk calculator works

Attendance is classes attended divided by classes held. Safe bunks is the largest number of classes you can miss in a row and still be at or above the required percentage: attended ÷ (held + bunks) ≥ required. If you are already below, the calculator flips to how many classes you must attend in a row to climb back: (attended + n) ÷ (held + n) ≥ required. Both are exact, no rounding tricks.

The 75% rule and condonation

Most Indian universities, including APJ Abdul Kalam Technological University (KTU), require 75% attendance in a semester to write the end-semester exam. KTU allows the Principal to condone a shortage of up to 10% for genuine reasons such as illness, usually with a fee and supporting documents, which makes 65% the practical floor. Below that there is no exam. Rules and how attendance is counted (per subject or overall, per hour or per day) vary by college, so check your own handbook.

Attendance marks, not just eligibility (KTU)

Eligibility is one line; marks are another. In the KTU 2019 scheme, attendance is worth 10 of the 50 internal marks for a theory course: full marks at 90% and above, and proportionally less below that (82% gives 82 ÷ 90 × 10 = 9.1). So keeping 90% is worth real marks even though 75% is enough to sit the exam. With APJ KTU selected, the table shows the bunks each level allows and the marks it is worth. Other universities have their own schemes, so the marks column is hidden for them; the percentage maths is the same everywhere.

Why per subject

Most colleges check attendance for each subject separately, and a single subject under the line can block you from that exam even when your overall figure looks fine. So the calculator works subject by subject: enter each one, and the headline judges the weakest (tap another to see it). Each subject can carry its own minimum (a lab that needs 80% next to theory at 75%); leave it blank to use the default. Your overall percentage is shown underneath for reference.

Planning the semester

Enter your estimate of how many classes of a subject are still to come and the calculator works out how many of them you can skip while finishing at your target. Ten classes left, none held yet, aiming for 80%: you can bunk two. Keep a buffer of 3–5%: a fever in the last week is not the time to be exactly on the line.

Privacy

Your numbers are kept in your browser so the page remembers them, and only travel inside a link if you choose to share one. Nothing is uploaded or stored by us.

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