Calculate Average Employee Tenure in Excel

The ability to accurately calculate Average Employee Tenure in Excel is essential for any organization wishing to accurately measure and track employee retention. Average Employee Tenure is a key metric in many organizations, as it can be used to measure employee satisfaction, identify turnover trends, and indicate organizational stability. Through the use of Excel, it is possible to quickly and accurately calculate Average Employee Tenure in order to gain a comprehensive understanding of employee retention in an organization.


Often you may want to calculate average employee tenure at some company in Excel.

Fortunately this is easy to do and the following step-by-step example shows how to do so.

Step 1: Enter the Data

First, let’s enter the following dataset that shows the start and end date for various employees at some company:

Step 2: Calculate Tenure of Each Employee

Next, we can type the following formula into cell D2 to calculate the tenure of the first employee:

=YEARFRAC(B2, C2)

We can then click and drag this formula down to each remaining cell in column D:

Column D now shows the tenure (in decimal years) of each individual employee.

Note: The YEARFRAC function returns the number of decimal years between a specific start and end date.

Step 3: Calculate Average Tenure

Lastly, we can type the following formula into cell D11 to calculate the average employee tenure:

=AVERAGE(D2:D11)

The following screenshot shows how to use this formula in practice:

calculate average tenure in Excel

If you would like to display this number in terms of years and months, you can type the following formula into cell E11:

=INT(D11) & " years, " & INT((D11-INT(D11))*12) & " months"

The following screenshot shows how to use this formula in practice:

The average tenure of employees at this company is about 4 years and 3 months.


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