New Hire Retention Rate (Early Turnover Rate) Calculator | Free Post-Hire Retention Tool
Enter your hired headcount and the number still employed after a given period to instantly calculate the new hire retention rate and early turnover rate for free. HR teams can quickly judge, with a benchmark, not just whether they hired successfully, but whether the people they hired actually stayed.
Measuring how many new hires stayed
Enter the number of people who joined and the number still with the company once a set period has passed, and this tool works out the retention rate and the early attrition rate.
The first thing to settle about this measure is the point at which you count. Three months, six months and a year after joining naturally give quite different figures. Setting yours against a published rate means nothing unless both were measured over the same period. And when early departures do occur, looking for the cause only in what followed the start date misses the mark. Leaving at this stage usually arises from a gap between what was described during recruitment and what the work turned out to be, and however much you thicken the induction and the follow-up conversations, nothing is solved while that gap in expectations remains. When the figure looks poor, what deserves review is not only how people were received but how the role was described during selection.
How to work it out
- Enter the number who joined The intake for the period in question.
- Settle the point at which you count Three months, six months, a year — hold to the same point every time.
- Enter the number still present at that point The retention and early attrition rates follow.
- Review what was said at recruitment too When the figure is poor, suspect how the role was described as much as how people were received.
Tips for getting more out of it
- The new hire retention rate varies a lot depending on the measurement window (3 months, 6 months, 1 year, etc.). Standardize the window across your organization before comparing periods.
- While our Hiring Funnel Conversion Rate Calculator covers whether you successfully hired someone, this tool covers the post-hire phase — whether the people you hired actually stayed. Viewing both together gives a complete picture of the hiring process.
- When retention is low, checking each leaver's tenure and stated reason for leaving helps reveal which stage of onboarding is losing the most people.
- Mid-career hires and new graduates often show very different retention patterns, so breaking the calculation down by hiring channel makes it easier to spot which channel needs improvement.
Where it comes in useful
Comparing recruitment channels
Even from the same advertisement, retention can differ by the route people came through.
Examining how people are received
Looking department by department reveals where one alone is falling short.
Building it into a recruitment plan
A plan that makes no allowance for early departures leaves you short-handed.
Reading it alongside cost per hire
A cheap hire who does not stay raises the true cost after all.
Terms about retention
- Retention rate
- The proportion of those who joined who are still present at the point of measurement.
- Early attrition rate
- A hundred per cent less the retention rate, denoting departures soon after joining.
- Point of measurement
- When you count: three months, a year and so on. Without holding it constant, no comparison is possible.
- Gap in expectations
- The divergence between what was described during recruitment and what the work proved to be. It is the principal cause of early departures.
- Induction
- The arrangements for training and support once someone has been placed.
- Placement
- The department someone joins after starting. Retention can differ sharply from one to another.
Frequently Asked Questions
Side Note — The "First 90 Days" Wall in Early Employee Turnover
New hire departures tend to cluster around a few predictable moments — most notably around the 90-day mark (often the end of a probationary period), and again around the first six to twelve months when the first performance review or bonus cycle arrives. HR practitioners often point to these windows because they are when the gap between pre-hire expectations and the actual job or culture (sometimes called "reality shock") tends to surface most sharply.
Unlike turnover_rate, which simply counts how many employees left across the whole company, the new hire retention rate is a form of cohort analysis: it tracks how many people from a single hired cohort remain over time. It is essentially the HR equivalent of the "cohort retention" concept SaaS companies use to track customer retention, and plotting departure timing on a chart tends to make the clusters visually obvious.
Common tactics for reducing early turnover include assigning a dedicated mentor or "buddy" from day one, and instituting mandatory 1-on-1 check-ins with a manager at the one-week, one-month, and three-month marks as "onboarding milestones." More companies are now tracking the new hire retention rate over time to measure whether these interventions are actually working.