How to Use the Attendance Calculator
1
Enter Present Classes
Input the total number of classes or lecture hours you have attended so far.
2
Enter Total Classes Held
Input the total number of classes conducted by your professors.
3
Set Target Percentage
Set your institution's minimum requirement (commonly 75% or 80%).
4
Analyze Status
See your current percentage and exact number of classes you can miss or must attend.
Attendance Percentage & Requirement Formula
Formulas used to determine current standing and class requirements:
Current Attendance (%) = (Classes Attended / Total Classes) × 100
To reach Target T% when below criteria: Classes Needed = Math.ceil((T × Total - 100 × Attended) / (100 - T)).
Why Choose Our Attendance Calculator?
Computes safe-to-skip (bunk) lecture allowance
Shows classes needed to reach target percentage
Customizable target threshold (e.g. 60%, 75%, 85%)
Visual status indicator (Green = Safe, Red = Shortage)
Pro Tips for Best Results
- Bookmark this page (Ctrl+D / Cmd+D) for fast offline-capable access whenever you need it.
- Use keyboard shortcuts (Tab / Enter / Space) for quick form navigation without touching your mouse.