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Absenteeism Rate Calculator

Divide days lost to absence by days available to get the absenteeism rate.

About Absenteeism Rate Calculator

The absence rate is the share of total scheduled working days that days lost to unplanned absence represents, expressed as a percentage. The same figure is also shown per 1,000 and as a "one in every N" odds statement, which is easier to reason about when the rate is very small. Absolute counts hide scale — a rate normalises the number so you can compare periods, channels or cohorts of different sizes, where lower is better.

Formula

Absenteeism Rate

Absenteeism Rate = Days lost to unplanned absence ÷ Total scheduled working days × 100

Days lost to unplanned absence
The subset being measured
Total scheduled working days
The full population it is drawn from

Worked example

With the default values below, Absenteeism Rate Calculator returns Absenteeism Rate of 2.21%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Days lost to unplanned absenceminimum 0
1,150
Total scheduled working daysminimum 0
52,000

Results

Absenteeism Rate
2.21%
Remaining (whole minus part)
50,850
Equivalent per 1,000
22.1
One in Every
45.2

Step by step

  1. 1Values used
  2. 2Absenteeism Rate
  3. 3Absenteeism Rate= 2.21
  4. 4Remaining (whole minus part)= 50,850
  5. 5Equivalent per 1,000= 22.1
  6. 6One in Every= 45.2

Assumptions and limits

  • The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is Absenteeism Rate calculated?

Absenteeism Rate = Days lost to unplanned absence ÷ Total scheduled working days × 100 The absence rate is the share of total scheduled working days that days lost to unplanned absence represents, expressed as a percentage. The same figure is also shown per 1,000 and as a "one in every N" odds statement, which is easier to reason about when the rate is very small.

Why does Absenteeism Rate matter?

Absolute counts hide scale — a rate normalises the number so you can compare periods, channels or cohorts of different sizes, where lower is better.

What values do I need to enter?

This calculator takes 2 inputs: Days lost to unplanned absence, Total scheduled working days. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

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