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Attendance Percentage Calculator

Class-attendance % and absences allowed to maintain it.

Compute the attendance percentage from classes attended and total classes, plus the maximum number of additional absences allowed before falling below a target percentage.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

%

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Attendance % = attended / total · 100. Allowed absences = floor(total · (1 − target/100) − (total − attended)).

In depth

Compute the attendance percentage from classes attended and total classes, plus the maximum number of additional absences allowed before falling below a target percentage.