Attendance Calculator
Free college attendance calculator. Check your attendance percentage, how many classes to attend to reach 75%, and how many you can safely miss.
How the 75% rule works
Most Indian universities require at least 75% attendance to sit in semester exams. Fall below it and you can be debarred — no matter how well you studied.
- Your percentage = (classes attended ÷ total classes held) × 100
- If you are below 75%: classes to attend in a row = (0.75 × total − attended) ÷ 0.25
- If you are above 75%: classes you can miss = (attended − 0.75 × total) ÷ 0.75
Read the full explanation in our 75% attendance rule guide.
Tips to stay above 75%
- Track attendance subject-wise, not just overall — one weak subject can debar you.
- Never miss the first two weeks; early classes build your buffer for later.
- Medical or event leaves still count as absent unless your university condones them — check the rules.
Frequently asked questions
How do I calculate my attendance percentage?
Divide the number of classes you attended by the total classes held, then multiply by 100. Example: 32 attended out of 45 = 71.1%.
How many classes can I miss and stay above 75%?
Use the calculator above — enter your attended and total classes and it tells you exactly how many more you can miss while staying at or above 75%.
What happens if attendance falls below 75%?
In most Indian universities you can be debarred from semester exams. Some universities allow a small condonation for medical reasons, but the rules are strict.
Does the 75% rule apply per subject or overall?
Most universities apply it per subject (and overall). One subject below 75% can mean a backlog in that subject — track each subject separately.
Do holidays and cancelled classes count?
No — only classes actually held count in the total. But a class you skipped for a college event usually still counts as absent unless officially condoned.
Track all of this automatically
Calculators are handy, but UniMate tracks your SGPA, attendance and syllabus for you — free, all semester.
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