Free Employee Turnover Calculator

Multiply employees lost per year by the cost to replace each employee. Replacement cost is typically estimated as a percentage of the employee's annual salary, usually 50–200% depending on role complexity.

The calculator multiplies those together to give you total annual turnover cost, then breaks it down monthly. Use your own replacement cost percentage based on your role mix: 50% for administrative roles, 100–150% for knowledge workers and customer-facing roles, 150–200% for technical and senior leadership positions.

For roles with lower specialization (administrative, entry-level), 50% of salary is a defensible starting point. For customer-facing, technical, and senior roles, estimates from SHRM and Gallup consistently range from 100% to 200%.

The percentage accounts for recruiting fees, lost productivity during the vacancy, new hire ramp time, and the manager and peer time consumed by both departure and onboarding. Most CFOs accept 100% of salary as a conservative all-in replacement cost for knowledge workers.

Research from Gallup identifies compensation, career development opportunities, and manager quality as the top drivers of voluntary turnover. For early-career employees and new hires specifically, unclear onboarding and insufficient skill development are major contributors.

Employees who do not feel competent and productive in their first 90 days are significantly more likely to leave in the first year. This is why organizations that invest in structured onboarding, including interactive product and process training, which typically means lower first-year turnover than those relying on shadow programs and static documentation.

Annual turnover rates above 20% are generally considered high for knowledge work roles. Rates below 10% are common at stable, high-engagement organizations.

Average voluntary turnover in tech has historically run 13–18% annually, higher in sales (20–35%) and lower in engineering (10–15%). More useful than an industry benchmark is your first-year versus multi-year split: high first-year voluntary turnover is a signal about onboarding and expectation alignment, the most preventable and expensive form of turnover.

Structured onboarding that gets new hires to competence faster reduces early attrition by eliminating the frustration and disorientation that drives departures in the first 90 days. Employees who understand what the product does, how their team operates, and where to find answers are more confident, more productive earlier, and more likely to see a future at the company.

Research from BambooHR shows that employees with structured 90-day onboarding are 69% more likely to remain after three years versus those with minimal onboarding programs. Our guide on in-app onboarding walks through the design choices that compress ramp time the most.

Interactive demos help new hires learn product workflows and internal processes faster and more independently, which reduces the ramp time that often leads to early attrition. When employees can revisit step-by-step walkthroughs whenever they need a refresher, rather than relying on a single training session, helping them build confidence without blocking their manager's time.

Supademo customers use onboarding demos for both external customers and internal teams, reducing ramp time and the "I have no idea what I'm doing" frustration that drives early-tenure departures. See how teams approach this at education and training use cases.

Yes. Supademo's employee turnover calculator is completely free to use in your browser with no sign-up required.