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Attendance percentage calculator

Check your attendance percentage, how many classes you can miss and still stay at 75 %, or how many you must attend to get back above it.

Your inputs stay in this tab. We do not receive your files, pasted text or calculation values.

Input

Your result

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How to use this tool

  1. Enter your values or choose a local file. Replace the example data with your own.
  2. Review options, units and assumptions, then run the tool.
  3. Check the result before copying or downloading it. Keep an original copy of important files.

Method & assumptions

Check your attendance percentage, how many classes you can miss and still stay at 75 %, or how many you must attend to get back above it.

can miss = ⌊attended ÷ required − held⌋; must attend = ⌈(required × held − attended) ÷ (1 − required)⌉

Worked example

Classes held so far: 60
Classes attended: 42
Required attendance %: 75

→ Current attendance: 70%
→ Classes you must attend in a row to reach the minimum: 12
→ Classes missed so far: 18

Limits & important notes

Basic release. Review the result before relying on it. File limits, supported cases and processing requirements are shown above.

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Are my inputs stored?

Your inputs stay in this tab. We do not receive your files, pasted text or calculation values.

Is this tool free?

Yes. No signup or payment is required.

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