Attendance Calculator
Calculate attendance percentage from classes attended and classes held.
About this tool
A simple attendance percentage calculator for students and teachers.
How to use
Enter the number of classes attended and the total number of classes held. Check your institution’s attendance policy for required thresholds.
Attendance Calculator guide
Calculate attendance percentage from classes attended and classes held. Use the result as an educational estimate and check your school's grading or policy rules when they differ.
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Attendance Calculator Guide
The Attendance Calculator estimates how attendance percentage changes as classes are attended or missed. It can help students understand how many sessions they have completed and what attendance level they can maintain.
Basic formula
Attendance percentage is calculated as sessions attended divided by total sessions, multiplied by 100. For example, attending 18 of 20 classes gives 18 ÷ 20 × 100 = 90%.
Planning future attendance
If your current percentage is below a required threshold, enter the expected future sessions to see how additional attendance changes the result. Policies vary by school, so compare the estimate with the official attendance record.
The calculator is a planning aid and does not replace your institution's attendance system or rules about excused absences.