Team Absence Rate Hours Formula
Learn how to calculate a team's absence rate from scheduled working hours and recorded absence hours.
An hours-based absence rate shows the share of scheduled team time that was lost to recorded absence. Using hours helps make comparisons more consistent when working patterns or shift lengths differ.
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Team absence rate
Where:
Divide the team's recorded absence hours by its total scheduled hours, then multiply by 100 to get the percentage of scheduled time lost.
Variables Explained
| Variable | What It Means | Unit |
|---|---|---|
| absenceHours - Total absence hours | The total hours missed by the team for the absence categories being measured. | hours |
| totalScheduledHours - Total scheduled hours | The planned working hours available to the team in the reporting period. | hours |
| teamSize - Team size | The average number of employees included in the reporting period. | number |
| hoursPerEmployeePerDay - Scheduled hours per employee per day | The standard work hours scheduled for one employee on a working day. | hours |
| workingDays - Working days in period | The scheduled workdays included in the reporting period. | days |
Step-by-Step Calculation
Calculate total scheduled hours
Estimate the team's planned working capacity by multiplying the number of employees, daily scheduled hours and working days.
totalScheduledHours = teamSize * hoursPerEmployeePerDay * workingDays
Calculate the absence proportion
Compare the recorded absence hours with the total hours the team was scheduled to work.
absenceProportion = absenceHours / totalScheduledHours
Convert the proportion to a percentage
Multiply by 100 to express the proportion as an absence rate percentage.
absenceRate = absenceProportion * 100
Calculate attendance rate
Attendance rate is the remaining percentage of scheduled hours not recorded as absence.
attendanceRate = 100 - absenceRate
Convert absence hours to workdays
Divide absence hours by the standard daily hours to show the lost time as equivalent employee workdays.
equivalentWorkdaysLost = absenceHours / hoursPerEmployeePerDay
Worked example: 10-person team over 22 working days
Scheduled hours
10 * 8 * 22
1,760 hours
Absence proportion
48 / 1,760
0.02727
Absence rate
0.02727 * 100
2.73%
Attendance rate
100 - 2.73
97.27%
Equivalent workdays lost
48 / 8
6 days
Final Result
The estimated team absence rate is 2.73%, based on 48 absence hours out of 1,760 scheduled hours. This equals 6 standard workdays lost.
Assumptions
- ✓All team members are assumed to have the same standard scheduled hours per working day.
- ✓Team size and working days are representative of the full reporting period.
- ✓Absence hours and scheduled hours relate to the same employees, dates and reporting scope.
- ✓Only the absence categories selected by the user are included in the result.
Limitations
- !The calculation does not identify the reasons for absence or whether it was planned or unplanned.
- !A single standard daily-hours value may not fully reflect mixed shift patterns or individual part-time schedules.
- !A percentage alone does not show the operational effect of absence on a particular day or shift.
- !Results are only comparable when periods use the same employee scope and absence definitions.
Common Mistakes to Avoid
Using absence hours from a different date range than the scheduled hours.
Including employees in team size who were not part of the team throughout the period.
Entering calendar days instead of scheduled working days.
Counting annual leave in one period but excluding it in another.
Comparing percentages across teams that use different absence categories or scheduling assumptions.
Related Formulas
Frequently Asked Questions
What is the formula for team absence rate by hours?
The formula is total absence hours divided by total scheduled team hours, multiplied by 100.
How do you calculate total scheduled hours for a team?
Multiply team size by scheduled hours per employee per day and by the number of working days in the period.
How is attendance rate calculated from absence rate?
Subtract the absence rate from 100. For example, a 2.73% absence rate produces a 97.27% attendance rate.
How do I convert absence hours into workdays lost?
Divide total absence hours by the standard scheduled hours in one employee workday.
Why can an absence rate exceed 100%?
It usually means the absence hours and scheduled hours cover different people, periods or categories. Check the input scope before interpreting the result.
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