Tenure matters for redundancy pay, pensions, benefits that vest over time and HR analytics. The median tenure of U.S. workers is about 4 years; long average tenure usually signals good retention.
How to use the Tenure Calculator
- Start date
- End date (or today)
- Team: combined years of service
- Team: number of employees
Results update as you type, and every field accepts the units shown in its menu.
How it works
Enter the start and end dates for one employee, or the combined years of service and headcount for a team.
Inputs explained
| Field | What to enter |
|---|---|
| Start date | A date |
| End date (or today) | A date |
| Team: combined years of service | A number |
| Team: number of employees | A number |
What each result means
- Tenure = floor([Months]÷12)
- and months = [Months] – 12×floor([Months]÷12)
- and days = [End date (or today)] – addmonths([Start date], [Months])
- Tenure in years (decimal) = ([End date (or today)] – [Start date])÷365.2425
- Team average tenure = [Team: combined years of service]÷[Team: number of employees]
Example values
How the main result changes when Team: combined years of service changes and everything else stays at the example values above:
| Team: combined years of service | Tenure (years) |
|---|---|
| 84 | 7 |
| 126 | 7 |
| 168 | 7 |
| 210 | 7 |
| 252 | 7 |
| 336 | 7 |
Formula
Tenure = end date − start date (years, months, days)
Average tenure = combined years of service ÷ number of employees
Worked example
Inputs: Start date: 2019-03-11; End date (or today): 2026-10-25; Team – combined years of service: 168; Team – number of employees: 32.
Results: Tenure = 7 years; and months = 7; and days = 14; Tenure in years (decimal) = 7.63; Team average tenure = 5.3 years.
Frequently asked questions
What is the average job tenure in the U.S.?
About 3.9 years (BLS, 2024).
How is tenure used?
For benefits, vesting schedules, severance and retention analysis.
Does tenure include probation?
Usually yes, as it counts from the first day of employment.