Employee Turnover Rate Calculator
Turnover rate is the clearest single indicator of workforce stability. It tells you what share of your people left during a period relative to your average headcount, which in turn drives recruiting cost, training load, and lost productivity. Because turnover is measured against an average, not a single point, this calculator uses beginning and ending headcount to compute the average for you. Enter the number of separations, your starting and ending headcount, and an optional annualization factor, and the tool returns the turnover rate, the retention rate, and the annualized turnover rate.
Turnover rate formula
Average headcount = (start + end) / 2
Turnover rate % = (separations / average headcount) * 100
Retention rate % = 100 - turnover rate %
Annualized turnover % = turnover rate % * annualization factor
Average headcount smooths growth or shrinkage over the period. The annualization factor scales a partial-period rate to a yearly equivalent (for example 12 for a monthly figure).
Using the turnover rate
- Compare turnover against your industry norm, not a universal target.
- Separate voluntary from involuntary turnover for a clearer picture.
- A rising trend is often more telling than the absolute level.
- Use average headcount, not just the starting figure, when the team is growing.
- Annualize partial-period rates before comparing across different time spans.
Employee turnover: frequently asked questions
What is the employee turnover rate?
The employee turnover rate is the percentage of employees who leave an organization during a period, relative to the average number employed. It includes voluntary resignations, retirements, and involuntary separations. It is a key workforce health metric used to gauge stability and the cost of replacing staff.
How is turnover rate calculated?
Turnover rate equals the number of separations during the period divided by the average number of employees, multiplied by 100. Average headcount is usually the beginning headcount plus ending headcount divided by 2. For example, 15 separations against an average of 120 employees is a 12.5% turnover rate.
What is a good turnover rate?
It varies widely by industry; some sectors such as hospitality and retail naturally run high turnover, while others run low. Compare your rate to industry norms rather than an absolute target. A sudden rise in turnover is often a clearer warning sign than the level itself.
What is the difference between turnover and retention rate?
Retention rate is the percentage of employees who stay over the period, while turnover rate is the percentage who leave. For a closed group they are roughly complementary, but they are measured differently in practice: retention often tracks a starting cohort, while turnover counts all separations against average headcount.
How do I annualize a turnover rate?
If you measure turnover over part of a year, you can annualize by scaling the rate to a full year, for example multiplying a quarterly rate by 4 or a monthly rate by 12. This calculator includes an annualization factor so you can convert a period rate to an annual equivalent.
Official sources
- U.S. Bureau of Labor Statistics: Job Openings and Labor Turnover Survey definitions.
- U.S. Bureau of Labor Statistics: Job Openings and Labor Turnover Survey (JOLTS).
Reviewed by the CalculatorHub team, edited by James Graham, 17 June 2026. See our methodology.