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Absence Rates Attendance (Annual) Calculator

Calculate your annual employee absence rate, attendance rate, total available workdays and average absence days per employee.

Your Details

Overview

This annual absence rate and attendance calculator shows the percentage of scheduled employee workdays lost to absence. Enter your average headcount, scheduled workdays per employee and total absence days to review attendance across a full year.

How it works

The calculator first estimates total available workdays by multiplying average headcount by scheduled working days per employee. It divides total absence days by this available time and converts the result to a percentage. Attendance rate is the remaining percentage after absence, while average absence days per employee is total absence days divided by average headcount.

How to use this calculator

  1. 1Enter the average number of employees employed during the year.
  2. 2Add the average scheduled workdays for each employee.
  3. 3Enter the total workdays lost to absence in the same period.
  4. 4Review the annual absence rate, attendance rate and average absence days per employee.

Example Calculation

Average number of employees

50

Scheduled working days per employee

260

Total absence days

175

Annual absence rate

1.35%

With 50 employees scheduled for 260 days each, there are 13,000 available workdays. Losing 175 days to absence gives an annual absence rate of 1.35%, an attendance rate of 98.65%, and an average of 3.5 absence days per employee.

Frequently asked questions

How is annual absence rate calculated?

Annual absence rate equals total absence days divided by total available scheduled workdays, multiplied by 100. Total available workdays are average employees multiplied by scheduled workdays per employee.

What is the difference between absence rate and attendance rate?

Absence rate is the percentage of scheduled work time lost to absence. Attendance rate is the percentage attended, calculated as 100% minus the absence rate.

Should holidays be included in scheduled working days?

Usually, use only days employees were scheduled to work. Exclude weekends, public holidays and contractual leave days if employees were not expected to work them.

Should planned leave be counted as absence?

This depends on the policy or reporting standard you are using. Keep the treatment of annual leave, parental leave, training and other planned absences consistent across periods.

Why use average headcount instead of year-end headcount?

Average headcount better reflects the number of employees available across the whole year, especially when staffing levels changed during the period.

Can this calculator be used for one department?

Yes. Enter the department's average headcount, scheduled working days and total absence days for the same annual period.

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Assumptions and warnings

Assumptions

  • The average employee count reasonably represents workforce size across the year.
  • Scheduled working days per employee reflect the days employees were expected to work.
  • All absence days entered are measured consistently, such as including or excluding approved leave according to your chosen policy.
  • Results are annual estimates based on the figures entered.
Annual Absence Rate and Attendance Calculator