80% Attendance Calculator
Use this page when your course, subject, or university policy requires 80% attendance. Check recovery classes, bunk limit, and whether the remaining semester gives you enough room to recover.
Check your attendance
Enter your class totals to see your current position and next steps.
Your result
- Consecutive classes to attend to recover
- Classes you can miss now
- Classes required among those left
- of
- Best possible final attendance if you attend all remaining classes
- Classes you can miss among those left
Even with perfect attendance in your remaining classes, you cannot reach your selected target. Check your institution's shortage policy.
What a 80% attendance target means
A 80% target means your attended classes divided by classes held must stay at or above 80%. Use the target your official policy or student portal shows; different subjects, labs, and programmes may use different rules.
Recovery and bunk-limit examples
80% attendance reference table
The table shows the minimum attended classes needed at common held-class totals. Your official portal may apply separate rounding or leave rules.
| Classes held | Attend at least | Maximum missed classes |
|---|---|---|
| 20 | 16 | 4 |
| 40 | 32 | 8 |
| 60 | 48 | 12 |
| 80 | 64 | 16 |
| 100 | 80 | 20 |
| 120 | 96 | 24 |
Related attendance tools
Use this as a planning estimate. Your official attendance system and institution policy remain authoritative.
Frequently asked questions
Quick answers for planning your attendance.
How do I reach 80% attendance?
Enter classes held and classes attended. The calculator shows the smallest number of consecutive classes you need to attend to reach the selected target.
How many classes can I miss and stay above 80%?
If your current percentage is already at or above the target, the result shows how many immediate classes you can miss before dropping below it.
What if recovery is impossible before the semester ends?
Add upcoming classes left. If the best possible final attendance is still below the target, check your institution's shortage or condonation process.