Education & Math

Attendance Calculator

Check your current class attendance and estimate how many more classes you need to reach a target percentage.

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Your result

Enter your details to calculate.

Results update as you complete the fields.

Worked example

Sample inputs

Classes held
40
Classes attended
28
Target attendance
75

Current attendance: 70%

  • Target attendance: 75%
  • Consecutive classes to attend: 8

How this attendance calculator works

Attendance percentage is classes attended divided by classes held. If below target, the calculator assumes you attend every upcoming class to estimate the minimum needed.

Frequently asked questions

How many classes must I attend to reach my target?

The estimate assumes you attend every future class without missing one. Your institution’s attendance rules may count classes differently.

Can this calculator tell me how many classes I can miss?

Yes. When you are above the target, it estimates the maximum additional absences while maintaining the target ratio.