How to calculate employee turnover cost
1. Work out your turnover rate
Divide the people who left during the year by your average headcount, then multiply by 100.
Turnover rate = (departures ÷ average headcount) × 100
Example: 30 departures with an average of 150 employees is a 20% annual turnover rate. Average headcount is usually (headcount at the start of the year + headcount at the end) ÷ 2.
2. Estimate the cost of one departure
Add up what it takes to replace someone and get the new person fully productive:
- Separation: exit time, final pay processing, unused leave.
- Hiring: job ads, recruiter or agency fees, time spent screening and interviewing.
- Onboarding and training: trainer time, courses, equipment and setup.
- Lost productivity: the vacant seat, plus the months a new hire spends ramping up.
Many organizations express this as a percentage of the role's annual salary. Use your own figures where you have them — the calculator above lets you set that percentage.
3. Multiply it out
Annual turnover cost = departures × average salary × replacement cost %
Example: 30 departures × $50,000 average salary × 30% = $450,000 a year.
4. Find what you can actually reduce
Not all turnover is avoidable. The parts you can influence are usually poor-fit hires who leave early, and good people who leave because they stop growing. ESAT Screen ranks applicants on real soft and hard skills before you hire, and ESAT Grow turns each employee's skill gaps into assigned training after they start.
