👥 Employee Retention Rate 計算機

The employee retention rate measures the percentage of staff who remain with your organization over a defined period. It is a core HR and workforce-planning metric: high retention signals a healthy, engaged workforce, while low retention points to costly turnover, recruiting expense, and lost institutional knowledge. This calculator works for any time frame — monthly, quarterly, or annual — as long as your numbers cover the same window.

Enter three figures: the number of employees on staff at the start of the period, the number at the end, and the number of new hires brought in during the period. New hires are subtracted so you measure only how well you held on to your original people. Press calculate to see your retention rate, the count of retained employees, and the matching turnover rate.

By removing new hires from the end count, the numerator reflects only employees who were present at the start and are still present at the end. Dividing by the starting headcount and multiplying by 100 expresses that as a percentage.

Suppose you began the year with 100 employees, ended with 95, and hired 10 new people during the year. Retained = 95 - 10 = 85.

meaning 15% of your original staff left, a 15% turnover rate.