Use this free online required attendance calculator to find out exactly how many more classes you need to attend to reach your target attendance percentage — or how many more you can safely miss if you are already above it.
How to Use the Required Attendance Calculator
Enter the "Classes Attended" and "Total Classes Held" so far.
Enter your "Target Attendance (%)".
Click "Calculate" to see either how many more classes you must attend, or how many you can safely miss.
Frequently Asked Questions
It solves for the smallest whole number of additional classes x (attended, and assumed to be held) so that (Classes Attended + x) ÷ (Total Classes + x) is at least your target percentage.
It solves for the largest whole number of additional classes y (held, but not attended) so that Classes Attended ÷ (Total Classes + y) stays at or above your target percentage.
Yes, it's completely free and requires no sign-up.