Attendance Calculator
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Attendance Calculator – Check Attendance Percentage, Missed Classes & Required Classes
This online Attendance Calculator helps you instantly calculate your attendance percentage, find how many classes you can still miss, and determine how many extra classes you need to attend to reach a target percentage like 75%, 80%, or 90%.
Whether you are a school student, college student, or preparing for university attendance requirements, this tool makes tracking attendance simple and accurate.
What Is an Attendance Calculator?
An attendance calculator is a tool that uses the total number of classes and the number of classes attended to determine your current attendance percentage. It also helps you plan your attendance by predicting:
Classes you can still miss
Classes required to reach a target attendance
Whether your current attendance meets college rules
This tool works for CBSE schools, ICSE schools, colleges, universities, engineering institutes, medical colleges, and coaching centers.
What This Calculator Can Do
1. Calculate Current Attendance
Just enter:
Total classes conducted
Classes attended
You instantly get your attendance percentage.
2. Find How Many Classes You Can Still Miss
If your target is 75%:
The calculator shows the maximum number of classes you can skip without dropping below the target.
3. Find How Many Classes You Must Attend
If your current attendance is below the target, the tool tells you:
Exactly how many consecutive classes you must attend
With zero absences
To reach your target (like 75%, 80%, 90%)
3. Save, Share & Track History
You can:
Save past calculations
Copy results
Share with friends
Search attendance history
Great for semester-long tracking.
How to Use the Attendance Calculator
Enter total classes conducted
Enter classes attended
Enter your target attendance % (default 75%)
Choose your mode:
“How many classes can I miss?”
“How many classes do I need to attend?”
Click Calculate
Get instant results with explanation
Examples
Example 1: Calculate Attendance
Total classes = 60
Attended = 45
Attendance = (45/60) × 100 = 75%
Example 2: How many classes can I miss?
Current attendance = 75%
Target = 75%
You can still miss 0 to 2 classes (depending on remaining total).
Example 3: How many classes must I attend to reach 75%?
Total classes = 40
Attended = 25
Current attendance = 62.5%
To reach 75%, you must attend 11 consecutive classes.
Who Can Use This Calculator?
College students
School students
Engineering students (B.Tech, B.E.)
MBBS / Medical students
The attendance rule requires a 75% requirement for institutions.
Coaching and tuition centers
Teachers tracking student attendance
Why Attendance Percentage Matters?
Because many universities in India and abroad require a minimum attendance to:
Sit for exams
Submit assignments
Attend labs
Avoid detention
Prevent extra fees or supplementary exams
Most colleges require 75% attendance minimum.
Frequently Asked Questions (FAQ)
How do I calculate attendance percentage?
Use the formula: Attended ÷ Total × 100.
What happens if my attendance is below 75%?
Most colleges will not allow exam entry unless you attend more classes to reach the requirement.
Can this calculator show how many classes I can skip?
Yes. Select “How many classes can I miss?” and enter your target %.
Does this tool work for 80% or 90% attendance targets?
Yes. Just change the target value.
Can I use this for multiple semesters?
Yes. The tool includes history tracking, so you can store past calculations.
Conclusion
This Attendance Calculator makes attendance management simple and error-free. Whether you need to reach 75%, plan your absences, or find how many classes you must attend, this smart tool gives instant and accurate results. Perfect for students across schools, colleges, and universities.