Attendance Calculator

Divide the number of classes you attended by the total number of classes held, then multiply by 100. For example, 45 classes attended out of 80 held is (45 ÷ 80) × 100 = 56.25%. The calculator does this instantly and also tells you how you stand against your target.

Most Indian universities and many schools and colleges require students to attend at least 75% of classes to be eligible to sit final exams. It is a conventional institutional cutoff, not a national law, so the exact figure can vary — set the target field to whatever your own institution requires.

If you are already at or above your target, the calculator shows the maximum classes you can skip: floor(attended ÷ (target ÷ 100) − total). For 90 attended out of 100 with a 75% target, that is floor(90 ÷ 0.75 − 100) = 20 classes you can miss before you slip below 75%.

If you are currently below the target, attend all of the next ceil((target ÷ 100 × total − attended) ÷ (1 − target ÷ 100)) classes. For 45 attended out of 80 with a 75% target, that is 60 classes attended in a row, which lifts you to exactly (45 + 60) ÷ (80 + 60) = 75%.

Every future class you attend increases both the classes attended (numerator) and the total classes held (denominator). The common shortcut of adding classes only to the numerator is wrong — it overstates progress and leaves you short of the target. This calculator uses the correct both-sides formula so the projected percentage genuinely reaches your goal.

The calculator switches to "required" mode and tells you the exact number of upcoming classes you must attend without missing any to climb back to your target. The higher your target and the further below it you are, the more consecutive classes you will need.

It depends entirely on your institution. Some count medical and excused absences as "present" or exclude them from the total, while others count them as missed. This calculator uses plain counts, so enter the figures the way your institution records them — for example, add medically excused sessions to "attended" only if your college does.

Yes. The target field is fully adjustable from 1% to 100%. Set it to 80%, 85% or whatever your course, scholarship or visa condition requires, and the bunk and required figures recalculate instantly.

It means you are sitting exactly on your target with no buffer. Your percentage is at the threshold, so the very next class you miss pushes you below it. Attend the next few classes to build a cushion before you skip any.

If you enter 0 total classes, there is nothing to divide by — no classes have been held yet, so a percentage cannot exist. Enter the actual number of classes held and the calculation will work.

Yes. The math is identical whether you count individual class periods or whole days — just enter days attended and total days held. School staff and employees can use it the same way to track day-based attendance.

A 100% target means every single class must be attended, so there is no room to miss any — the "classes you can skip" figure is always 0, and once you have missed even one class you can never get back to 100%. The calculator handles this without errors and explains the result.

At most Indian colleges, falling below the minimum (commonly 75%) means you are placed on the "detained" or "shortage" list and are not issued a hall ticket for end-semester exams. The formal outcome is labelled DT or "detained" on the semester marksheet, which behaves like a backlog and can flag on placement filters. Some institutions issue a written warning first before the deadline to give you a chance to recover. The exact consequence — warning, exam bar, or grade penalty — is set by your institution, so check your college calendar or handbook for the specific rules that apply to you.

At most AICTE-approved and university-affiliated colleges in India, attendance is checked per subject, not as an overall average. You could have 80% attendance when all subjects are combined but still be detained in a single subject where your individual count is 68%. Track each subject separately and use the calculator once per course — a healthy overall figure can hide a shortage in one class.

Condonation is a formal process that allows a college or university to excuse an attendance shortage, typically where the shortfall is due to medical reasons, official duty (NSS, NCC, sports representation) or other documented causes. In practice, most colleges apply it when your attendance is between 65% and 75%; below 65% is usually outside the condonation limit. The process involves submitting an application through your Principal or HOD with supporting documents — a medical certificate for illness, or an official letter for duty leave. The absent classes are then excluded from both the numerator and the denominator, improving your effective percentage. Condonation rules and fees vary by institution and university, so check your handbook early rather than after the deadline.