Attendance
Calculate attendance %
Attendance Details
Enter your current attendance record
Attendance Summary
About This Attendance Calculator
Enter how many classes were held and how many you attended, and this gives your percentage against your target — plus the number that people actually come here for: how many classes in a row you have to attend to get back above the line, or how many you can still miss if you are above it.
The Arithmetic Behind the Answer
classes needed = (target × held − attended) ÷ (1 − target)
classes you can miss = (attended − target × held) ÷ target
The dividing line in both is the target itself, and it is why recovery is slow. A missed class adds one to the denominator and nothing to the numerator; an attended class adds one to each. Below target, every class you attend improves the fraction by less than the one you missed damaged it.
Where You Stand at 75%
| Attendance so far | Current | Classes needed in a row | Classes you can miss |
|---|---|---|---|
| 35 of 60 | 58.3% | 40 | — |
| 40 of 60 | 66.7% | 20 | — |
| 48 of 70 | 68.6% | 18 | — |
| 45 of 60 | 75.0% | on target | 0 |
| 54 of 60 | 90.0% | on target | 12 |
| 85 of 100 | 85.0% | on target | 13 |
Both columns assume a 75% requirement and an unbroken run. One further absence and the "needed" figure goes up again.
About Attendance Calculator
Track your attendance percentage, find out how many more classes you need to meet requirements, and plan your attendance strategy for exams.
Attendance Requirements in India
75%
Most Universities
80-85%
Medical Colleges
75-80%
Engineering Colleges
60-70%
Open Universities
Frequently Asked Questions
Built and maintained by Sanjay Singh · Founder, Numrexo
Builds and maintains the calculators on Numrexo. Each tool's formula is documented on its page, and any reference source it relies on is listed under Method and references.
Last updated: · Calculations run in your browser. Nothing you enter is sent to us or stored.
Get new calculators & guides by email
Occasional updates when we add a new calculator or publish a useful guide. No spam, unsubscribe anytime.
By subscribing you agree to our Privacy Policy.