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Absence Rates Hours Calculator

Calculate an employee absence rate as a percentage of total scheduled working hours for a chosen period.

Your Details

Overview

Use this Absence Rates Hours Calculator to measure time lost to absence as a share of expected working time. Enter the number of employees, scheduled hours per employee, and total recorded absence hours for the same period.

How it works

The calculator first multiplies the number of employees by scheduled hours per employee to find total scheduled hours. It then divides total absence hours by total scheduled hours and multiplies by 100. For example, 64 absence hours out of 3,200 scheduled hours equals an absence rate of 2%. The attendance rate is the remaining percentage of scheduled hours.

How to use this calculator

  1. 1Enter the number of employees covered by the calculation.
  2. 2Add the scheduled working hours for each employee in the chosen period.
  3. 3Enter the total absence hours recorded during that period.
  4. 4Review the absence rate and average absence hours per employee.
  5. 5Use the same date range and recording rules when comparing results.

Example Calculation

Number of employees

20

Scheduled hours per employee

160

Total absence hours

64

Absence rate

2.00%

The team has 3,200 scheduled hours and 64 absence hours. Its absence rate is 2.00%, with an average of 3.20 absence hours per employee.

Frequently asked questions

How do you calculate an absence rate using hours?

Divide total absence hours by total scheduled working hours for the same period, then multiply the result by 100.

What is included in total scheduled hours?

It is the expected working time for everyone in scope, calculated here as the number of employees multiplied by scheduled hours per employee.

Should annual leave be counted as absence?

That depends on your organisation's reporting policy. Apply the same definition consistently to absence hours and comparisons.

Can I use this calculator for weekly, monthly, or annual absence rates?

Yes. Use figures from one consistent period, such as a week, month, quarter, or year.

Why is my absence rate above 100%?

This usually means the absence hours entered exceed the scheduled hours calculated. Check that the employee count, period, schedules, and absence records use the same scope.

What is the difference between absence rate and attendance rate?

The absence rate is the percentage of scheduled hours lost to absence. The attendance rate is the remaining percentage of scheduled hours.

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Assumptions and warnings

Assumptions

  • All employees are assumed to have the same scheduled hours for the selected period.
  • Absence hours and scheduled hours cover the same group of employees and the same dates.
  • The calculation treats all recorded absence hours equally, regardless of absence reason.
  • The result is a period measure and does not show the causes or operational impact of absence.

Warnings

  • This calculator provides a general workforce metric only; use consistent absence-recording rules when comparing results between teams or periods.