Attendance planner
Calculate classes needed for a supplied attendance target and test a future-class scenario.
Your scenario
Preparing the calculator…
Your result
- Current attendance (%)
- 70
- Consecutive classes needed
- 16
- Attendance if all future classes attended (%)
- 76
- Future classes that can be missed
- 1
Formula and assumptions
Attendance = attended ÷ held × 100. Consecutive classes needed = ceil((target fraction × held − attended) ÷ (1 − target fraction)), at least zero. Future allowance = floor(attended + future − target fraction × (held + future)).
Assumes equal class weights, no attendance credits and every future class attended unless counted as an absence. Subject-specific, lab, leave and institutional rules are excluded. This is not an eligibility decision.
A little guidance.
How to use attendance planner
- Enter your own numbers or choose Try an example.
- Review the settings and the stated limitations.
- Results update immediately. Check the formula, then choose Download or Copy.
Formats and compatibility
Numbers are calculated locally. Dates use the stated counting convention. Results download as plain text with assumptions. See browser compatibility.
Limitations
Assumes equal class weights, no attendance credits and every future class attended unless counted as an absence. Subject-specific, lab, leave and institutional rules are excluded. This is not an eligibility decision.
Worked example
56 of 80 classes is 70%. Attending the next 16 reaches 75%; with 20 future classes, at most one can be missed to finish at 75%.
Formula
Attendance = attended ÷ held × 100. Consecutive classes needed = ceil((target fraction × held − attended) ÷ (1 − target fraction)), at least zero. Future allowance = floor(attended + future − target fraction × (held + future)).
Questions, answered.
Do my files leave my device?
Processing adapters run in your browser. Fonts and code are served from this site. A peer transfer is a separate, explicit transmission; this tool never sends your content to an AI service.
Can I use it offline?
This build needs its code assets to load. Verified, installable offline packs are a launch requirement and are still in development.
What if my inputs are invalid?
The workspace displays a specific error. Try a smaller synthetic example or a supported format. Keep your originals and review exported files before relying on them.
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