Attendance Calculator
Calculate your attendance percentage and how many classes you can miss or must attend — free, fast and private.
Enter attended and total classes to calculate.
How to use Attendance Calculator
- Enter how many classes you attended.
- Enter how many classes were held in total.
- Enter the attendance percentage your school requires.
- Click Calculate to see your percentage and how many classes you can still miss.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
How many classes can I miss and still meet the target?
The calculator works it out for you: it shows how many more classes you can miss (if you are above target) or must attend in a row (if you are below it).
Is the Attendance Calculator free?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Do I need to install anything?
No. It works in any modern browser on phone, tablet or computer.
Is my data uploaded?
No. This tool runs entirely in your browser and your input is never uploaded to a server.