Attendance Calculator
Calculate your attendance percentage, classes needed to reach 75%, and how many classes you can safely skip.
How to Use the Attendance Calculator
- Enter the number of classes attended so far.
- Enter the total classes held.
- Select your college required percentage (75% is standard for most Indian universities).
- See your current percentage, how many classes you can miss safely, or how many you must attend in a row to recover.
Formula & Method
Attendance % = (Classes Attended / Total Classes) x 100
Classes you can still miss: floor((Attended - Req% x Total) / Req%)
Classes needed to recover: ceil((Req% x Total - Attended) / (1 - Req%))
Each class you miss lowers the numerator, and every new class raises the denominator — which is why recovering attendance gets harder as the semester progresses.
Examples
| Attended | Total | Percentage | Status (75% rule) |
|---|---|---|---|
| 60 | 80 | 75.0% | Exactly at requirement |
| 55 | 85 | 64.7% | Must attend next 35 classes |
| 70 | 85 | 82.4% | Can miss 8 more classes |
| 45 | 50 | 90.0% | Can miss 10 more classes |
Frequently Asked Questions
How is attendance percentage calculated?
Divide classes attended by total classes held, then multiply by 100. For example, 60 attended out of 80 total = 75%.
What happens if my attendance is below 75%?
Most Indian universities bar students below 75% from writing semester exams (detention). Some allow condonation with a medical certificate or fine, typically down to 65%.
How many classes can I bunk and keep 75%?
It depends on your current numbers. If you have attended 70 of 85 classes (82.4%), you can miss 8 more and stay at 75%. This calculator tells you instantly.
Can I recover if I am below 75%?
Yes, but you must attend every upcoming class. If you are at 55 of 85 (64.7%), you need to attend the next 35 classes consecutively to reach 75%.
Does medical leave count in attendance?
Policies vary by institution. Many colleges accept medical certificates to condone a shortage of up to 10%. Check your college attendance rules.
🔥 Popular Attendance Calculator Results
Quick links to common calculations:
People Also Ask
How much attendance is 60 out of 80 classes?
60 out of 80 is exactly 75% — the minimum required at most colleges. You cannot afford to miss another class without falling below.
How do I raise my attendance from 70% to 75%?
Attend consecutive classes without missing any. For example, at 70 out of 100 (70%), you need 20 straight classes to reach 75%. Use the calculator with your exact numbers.
Is attendance calculated per subject or overall?
Usually per subject in most universities — you need 75% in each subject separately, not just overall. A shortage in even one subject can block that exam.