About Attendance Calculator
Attendance Calculator is a free planning tool for students and anyone who needs a quick estimate of their attendance percentage, recovery target, or remaining miss allowance.
Why this site exists
Attendance rules can be difficult to reason about when each attended or missed class changes the result. This site turns the basic arithmetic into a clear estimate so you can understand your current position before checking your official records.
How calculations work
The calculator processes the numbers you enter locally in your browser. Your class totals are not submitted to our server or stored in an account. The result is based on the values you provide and the target percentage you select.
Use official rules for final decisions
Institutions may calculate attendance overall, subject by subject, or separately for lectures, labs, and practical sessions. Always confirm your position through your school, college, university, employer, or official attendance system.