Tax Tool

Education

School absence calculator and attendance planner

Enter classes held, absences so far and remaining classes to estimate your attendance percentage. Add possible future absences and a threshold to see how they could affect your attendance.

Quick math0

Use this for quick arithmetic, percentages, or to check figures while filling in the main tool, without leaving the page.

Your figures

Estimate

93.3% projected attendance

Attendance so far
92.5%
Attendance after planned absences
93.3%
Additional absences before threshold
8
Selected attendance threshold
80.0%

Your school may use a different calculation or absence policy. Confirm against its official attendance record.

How to use this tool

  1. Use School Absence Impact Planner for the question described above, and check that the inputs match your records and time period.
  2. Enter classes held so far.
  3. Enter absences so far.
  4. Enter classes remaining.
  5. Enter planned future absences.
  6. Enter attendance threshold.
  7. Change classes held so far, absences so far, classes remaining, planned future absences, attendance threshold to compare scenarios, then check the units in the result.

Worked example with the prefilled values

This example shows how School Absence Impact Planner uses its starting values. Change the calculator inputs to estimate your own situation.

Classes held so far
40
Absences so far
3
Classes remaining
20
Planned future absences
1
Attendance threshold
80 %

93.3% projected attendance

  • Attendance so far92.5%
  • Attendance after planned absences93.3%
  • Additional absences before threshold8
  • Selected attendance threshold80.0%

Your school may use a different calculation or absence policy. Confirm against its official attendance record.

Formula and calculation logic

Attendance = (classes held − absences) ÷ classes held × 100%

Projected attendance = (classes attended + future classes attended) ÷ all course classes × 100%

Current attendance = (classes held − absences) ÷ classes held.

Projected attendance includes the remaining classes and any future absences you enter.

The tool estimates the maximum additional absences before your projected attendance falls below your chosen threshold.

Assumptions

  • Every class session is counted equally. Your school may calculate attendance under different rules.
  • The threshold is entered by you; the tool does not determine legal or institutional absence rules.
  • This is a planning estimate. Confirm attendance records and consequences with your school.

Published sources

Further reading for checking current rules and information. These links are not live inputs to the tool.

Questions about this tool

How is attendance percentage calculated?

It is attended sessions divided by total sessions, multiplied by 100. This planner counts each session equally.

Does it tell me the official absence limit?

No. Enter the threshold that applies to your course or school, and verify its policy with the school.

Can I include future absences?

Yes. Enter planned absences to see their estimated effect on your final attendance percentage.