Practical use cases
- Tracking turnover for a team, department or the whole organisation over a defined period.
- Comparing turnover across equal-length periods on a consistent basis.
- Sense-checking a figure before a planning or review conversation.
Calculator
Works entirely in your browser — nothing is sent, saved or tracked. Results update as you type.
How it works
The formula is:
(Number of separations ÷ Average number of employees) × 100
Average headcount is usually (employees at the start + employees at the end) ÷ 2 for the same period. Count separations consistently — decide up front whether you include voluntary only, or voluntary and involuntary together.
Worked example: If 8 people left during a period when average headcount was 100, the turnover rate is (8 ÷ 100) × 100 = 8% for that period.
For the full background — what it measures, why it matters and how to read it — see the employee turnover rate guide.
How to read the result
Turnover is only meaningful with its period and scope attached: "8% over the quarter, voluntary only" says far more than "8%". A higher figure is not automatically bad and a lower figure is not automatically good — both depend on context, the type of departures and what you planned for.
Read turnover alongside retention and new-hire retention rather than on its own. A spike concentrated in one team, one tenure band or one reason is a different signal from the same number spread evenly.
Common mistakes
- Mixing period lengths (comparing a quarter to a year) so the percentages are not comparable.
- Changing what counts as a "separation" between periods (sometimes including involuntary exits, sometimes not).
- Using a single point-in-time headcount instead of an average, which distorts the rate when the team is growing or shrinking.
- Reading one number in isolation without scope, reason or trend.
Free, printable planning resources
Plan and onboard consistently alongside the numbers. No signup, no gating.