Absence Rates Turnover (Annual) Calculator
Calculate your annual employee turnover rate and absence rate using headcount, leavers, working days and total absence days.
Overview
Use this annual absence rate and turnover calculator to estimate the share of employees who left during the year and the share of scheduled work time lost to absence. Enter opening headcount, hires, leavers, working days and total absence days to create consistent workforce measures.
How it works
The calculator estimates closing headcount by adding hires to opening headcount and subtracting leavers. It then averages the opening and closing headcount. Annual turnover is the number of leavers divided by this average headcount. Annual absence rate is total absence days divided by the average headcount multiplied by scheduled working days. Using an average headcount gives a more representative annual measure where staff numbers change during the year.
How to use this calculator
- 1Enter the number of employees on the first day of the year.
- 2Add all employees hired and all employees who left during the year.
- 3Enter the scheduled working days for a typical employee.
- 4Add the total workdays lost to absence across the workforce.
- 5Review the annual turnover and absence rates alongside the supporting headcount figures.
Example Calculation
Starting headcount
100
Employees hired during the year
15
Employees who left during the year
15
Working days per employee
260
Total absence days
500
Annual turnover rate
15.0%
With an average headcount of 100, 15 leavers produce an annual turnover rate of 15.0%. Five hundred absence days over 26,000 scheduled workdays produce an annual absence rate of about 1.9%.
Frequently asked questions
How is annual employee turnover calculated?
Annual turnover rate is calculated by dividing the number of employees who left during the year by the average headcount, then multiplying by 100.
How is annual absence rate calculated?
Annual absence rate is total absence days divided by total estimated scheduled workdays, multiplied by 100. Scheduled workdays are average headcount times working days per employee.
Why does the calculator use average headcount?
Average headcount helps account for changes in workforce size during the year. It is calculated as the average of opening and estimated closing headcount.
Should maternity, long-term sickness or unpaid leave be included?
That depends on your organisation's reporting policy. Apply the same inclusion rules consistently across periods and teams so comparisons remain meaningful.
What counts as a leaver for turnover reporting?
Many organisations count resignations, dismissals, retirements and end-of-contract departures. Internal transfers are usually excluded, but your reporting definition should be consistent.
Can I use this calculator for a department?
Yes. Enter headcount, hires, leavers and absence days for that department, using working days that reflect its workforce pattern.
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Assumptions and warnings
Assumptions
- Average headcount is calculated from the opening headcount and estimated closing headcount.
- The absence rate uses scheduled working days and includes only the absence days entered.
- All employees are treated as having the same number of scheduled working days.
- Turnover is based on the leavers included in your figures and is expressed as a percentage of average headcount.
Warnings
- Results are management estimates and should be interpreted alongside workforce mix, seasonal staffing, part-time work and your organisation's absence policy.
- Use consistent definitions of leavers and absence categories when comparing periods or departments.