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Calculator Tools
Attendance Calculators

Absence Percentage Calculator

Absence rate for a student or employee, with the days lost and the cost.

Enter values

Results update as you type.

Result

Absence rate

5.455%

Attendance rate
94.545%
Days attended
208
Days absent
12
Bradford factor (single spells)
1,728
spells² × total days, if each absence were one day
Benchmark
Above typical — worth investigating

About the Absence Percentage Calculator

Absence rate for a student or employee, with the days lost and the cost.

Also known as: absenteeism rate, days absent percentage, sickness absence calculator, absence rate.

How to use this calculator

  1. Enter days absent, days scheduled, cost per day.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

absence % = days absent ÷ days scheduled × 100

Worked example

Using the values pre-filled in the calculator above:

  • Days absent = 12
  • Days scheduled = 220
  • Cost per day = 0

the calculator returns:

  • Absence rate: 5.455%
  • Attendance rate: 94.545%
  • Days attended: 208
  • Days absent: 12