Class Attendance Calculator
Track attendance and safe days to miss.
Enter the total number of classes in the course and how many you have attended. The calculator shows your attendance percentage and how many more classes you can miss while keeping the 75% minimum most schools require. Useful for planning around travel, illness, or important events.
How it's calculated
Attendance = attended ÷ total × 100. Safe absences = floor(total × 25%) − absences so far, based on the common 75% minimum attendance rule.
Frequently asked questions
What is the minimum attendance usually required?
Many schools and universities require 75% attendance to sit for exams, though it varies by institution. Always check your own course policy — some are stricter.
Do excused absences count against attendance?
Usually yes for the raw percentage, unless your school explicitly excludes them. Medical certificates may help in an appeal, but the calculator counts every absence.
Can I miss classes early in the term?
You can, but it is risky — early absences burn through your safe buffer before you know how the term will go. Save your skips for when you genuinely need them.