Compute attendance percentage and how many classes you can still miss while staying above a required minimum.
Attendance Calculator
How to Use
- Enter classes attended, total held, and required %.
- View current % and missable classes.
Formula
Attendance% = (attended / total) × 100. Missable classes depend on future sessions and the required ratio.
Worked Example
Example: 18 attended of 20 → 90%. If 75% is required, you may have room to miss some future classes depending on the schedule length.
What the Result Means
Helps students avoid falling below policy thresholds.
Important Notes & Limitations
- School policies differ—official records win.
Frequently Asked Questions
Medical leave?
Ask your institution how excused absences count.
Labs vs lectures?
Follow the component your policy measures.
Future classes unknown?
Estimate remaining classes for planning.
Rounding?
Schools may round differently; stay above the line.
Related Calculators
See also: GPA Calculator, Percentage, Attendance.
Disclaimer: Results are approximate and for educational and informational purposes only. They are not financial, tax, medical, or legal advice. Verify important decisions with a qualified professional.