Track your attendance, see how many classes you can miss, and plan ahead.
Attendance Calculator helps you track your class attendance percentage and determine whether you meet your institution's minimum attendance requirement. Enter your total classes, how many you've attended, and your required percentage to instantly see your status, how many more classes you can safely miss, and how many you must attend to stay on track.
Know how many total classes are planned for the semester? Calculate how many you can miss from now on.
Attendance percentage is calculated by dividing the number of classes you attended by the total number of classes held, then multiplying by 100. For example, attending 45 out of 60 classes gives you (45/60)×100 = 75% attendance.
Most institutions enforce a minimum attendance requirement (commonly 75%). Falling below this threshold can result in being barred from exams, loss of internal marks, or required remedial sessions. Some schools and universities have stricter requirements of 80% or even 85%.
Use the formula: Can miss = Total Classes − ceil(Total Classes × Required% / 100). For 100 classes at 75% requirement, you can miss up to 25 classes. This calculator computes it automatically based on your inputs.
Attendance can affect your GPA in several ways. Many institutions grade attendance as part of internal/continuous assessment marks. Low attendance may also result in denied exam eligibility, which effectively zeroes out your grade. Some professors also factor participation into final grades.
The standard minimum attendance requirement in most colleges and universities is 75%. However, this varies — some institutions require 80% or 85%, and certain professional programs (medical, engineering) may enforce even stricter thresholds. Always check your specific institution's policy.