Attendance Calculator

Calculate your current attendance percentage, find out how many classes you can still miss, or how many more you need to attend to meet the required threshold.

Total Classes Held

Classes Attended

Minimum Required %

Future Classes Planned (optional)

—

Current Attendance

—

Classes You Can Miss

and stay above threshold

—

Must Attend

to reach required %

What If You Miss More Classes?

If you miss	Classes Attended	Attendance %	Status

Attendance Formulas

Current % = (Classes Attended / Total Classes) × 100

Can Miss = floor((Attended − r × Total) / (1 − r))

Must Attend = ceil((r × (Total + Future) − Attended) / (1 − r))

Where r = required rate (e.g. 0.75 for 75%). "Can Miss" only applies when attendance is already above the threshold. "Must Attend" applies when below threshold.

How to Use the Attendance Calculator

1

Enter Total Classes

Input the total number of classes that have been conducted in your course so far this semester.
2

Enter Classes Attended

Enter how many of those classes you actually attended. This must be equal to or less than total classes held.
3

Set Required Percentage

The default is 75%, which is the requirement in most Indian universities. Change this to match your institution's requirement.
4

Add Future Classes (Optional)

If you know how many classes are still planned, enter that number to see your projected final attendance if you attend all remaining classes.

Example Calculation

80 classes held, 55 attended, required 75%, 20 future classes:

Current % = (55 / 80) × 100 = 68.75% (below 75%)

Must attend = ceil((0.75 × (80 + 20) − 55) / (1 − 0.75))

= ceil((75 − 55) / 0.25) = ceil(80) = 80 more classes needed

Projected % (attend all 20 future) = (55+20)/(80+20) × 100 = 75%

'Does medical leave count toward attendance?', 'answer' => 'Policies vary by institution. Many universities allow medical leave to be excluded from attendance calculations if properly documented with a medical certificate. Some grant up to 10% relaxation for medical reasons, effectively reducing the requirement from 75% to about 68% of remaining classes. Always check your institution\'s specific attendance policy and notify the administration promptly with supporting documents.'], ]" />