Absence Rates Utilisation (Individual) Calculator
Calculate an individual's absence rate, available working time and utilisation rate from scheduled, absent and productive hours.
Overview
Use this individual absence rates utilisation calculator to measure time lost to absence, remaining available working hours, and how much of that available time was used productively. Enter scheduled hours, recorded absence hours, and productive or utilised hours for the same period.
How it works
The absence rate is calculated by dividing absence hours by scheduled working hours. Available working hours are scheduled hours minus absence hours. The utilisation rate then divides productive or utilised hours by the remaining available hours. For example, absence affects available capacity before utilisation is assessed.
How to use this calculator
- 1Enter the individual's total scheduled working hours for the period.
- 2Add the absence hours covered by your reporting definition.
- 3Enter the productive, chargeable, or utilised hours recorded in the period.
- 4Review the absence rate, available hours, and utilisation rate.
- 5Compare results only where the same time period and definitions have been used.
Example Calculation
Scheduled working hours
160
Absence hours
8
Productive or utilised hours
140
Absence Rate
5.0%
With 160 scheduled hours and 8 absence hours, the absence rate is 5.0% and 152 hours are available. Recording 140 utilised hours gives a utilisation rate of approximately 92.1%.
Frequently asked questions
How is an individual absence rate calculated?
Divide the individual's absence hours by their scheduled working hours, then multiply by 100. For example, 8 absence hours out of 160 scheduled hours equals a 5% absence rate.
What is the difference between absence rate and utilisation rate?
Absence rate measures scheduled time lost to absence. Utilisation rate measures the share of remaining available time spent on productive, chargeable, or otherwise defined utilised work.
Should annual leave be included as absence?
That depends on your organisation's reporting policy. Many organisations report planned annual leave separately from unplanned absence, so use a consistent definition for all comparisons.
Why can utilisation exceed 100%?
A result above 100% usually means utilised hours exceed the available hours entered. Check the reporting period, time records, overtime treatment, and whether absence hours were entered correctly.
What reporting period should I use?
You can use a week, month, quarter, or year. All three hour inputs must cover exactly the same period for the result to be meaningful.
Can this calculator be used for teams?
Yes, but add total scheduled, absence, and utilised hours across the group first. For team reporting, avoid averaging individual percentages unless each person has the same scheduled hours.
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Assumptions and warnings
Assumptions
- Scheduled, absence and utilised hours all relate to the same reporting period.
- Absence hours are measured consistently with the organisation's absence policy.
- Utilised hours represent productive, chargeable, or assigned work as defined by the user.
- The results are operational estimates and do not account for the reason, pattern, or severity of absence.
Warnings
- Check that absence hours do not exceed scheduled hours; utilisation is not meaningful when no working hours are available.
- Use consistent definitions of productive time when comparing individuals or reporting periods.