% of staff leaving per year. The Employee Turnover Rate Calculator takes employees who left in the period, average headcount in the period and returns turnover rate plus retention rate, average leavers per month (12-month period). Results update as you type, and the formula is shown under the result so you can repeat it in your own spreadsheet.
Payroll figures should follow the rules in your contracts and local law. Where a rule differs between states or countries, adjust the inputs; the calculator shows its assumptions so you can check them against your own policy. Use the worked example below to check the maths against your own figures.
How the Employee Turnover Rate Calculator works
Annual turnover under 10% is low, 10–20% typical for most industries, above 30% expensive. Split voluntary from involuntary leavers to understand the cause.
Worked example
With the example values (employees who left in the period of 12, average headcount in the period of 100), the turnover rate is 12%; retention rate 88%, average leavers per month (12-month period) 1. Change any figure above and the result updates immediately; use Copy results to paste the summary into a note or email.
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Frequently Asked Questions
How is turnover rate calculated?
turnover rate = leavers ÷ average headcount.
Which figures do I need?
Employees who left in the period, average headcount in the period. Take them from the same period and the same set of accounts or reports so the ratio is consistent, and check the example values as a guide to the units expected.
Do the rules differ by location?
Yes. Statutory rates, ceilings and eligibility conditions vary by country and often by state. Adjust the inputs to your jurisdiction and confirm with your payroll provider or labour law adviser.
