Analyze Employee Turnover Data from Spreadsheet

HR systems export employee turnover data with hire dates, termination dates, departments, and exit reasons, but to analyze employee turnover data from spreadsheet exports—calculating annualized rates and spotting patterns across segments—requires formulas most people rebuild from scratch each month. DataMimi reads your HR export, calculates turnover rates by department and reason, and segments voluntary versus involuntary exits without manual formulas. This page shows how to calculate turnover rates, compare departments, and identify retention risks directly in your spreadsheet.

Upload your HR turnover export and get turnover rates by department, voluntary versus involuntary breakdowns, and early-exit counts without writing a single formula.

What this export contains

Employee ID
Hire Date
Termination Date
Department
Job Title
Manager
Termination Reason
Voluntary/Involuntary
Tenure (Days)
Location
Salary Band
Performance Rating

Common questions

How do I analyze employee turnover data from spreadsheet exports?

Calculate turnover rate by dividing terminations by average headcount, segment by department and termination reason, calculate average tenure of exits, and filter to voluntary versus involuntary. Use formulas to handle missing dates and inconsistent reason labels, then compare rates across groups rather than raw counts.

How do I calculate monthly employee turnover rate?

Divide the number of terminations in the month by the average headcount for that month, then multiply by 100 for a percentage. Average headcount is (headcount at start of month + headcount at end of month) / 2. For annualized monthly turnover, multiply the monthly rate by 12.

How do I separate voluntary and involuntary turnover?

Filter or count rows where the Voluntary/Involuntary column equals 'Voluntary', then divide by total terminations. If the column uses text like 'Resignation' or 'Retirement', group those as voluntary and 'Termination' or 'Layoff' as involuntary before counting.

How do I compare turnover rates across departments?

Calculate turnover rate separately for each department by dividing terminations in that department by average headcount in that department. Sorting by raw termination count instead of rate will make large departments appear worse even if their percentage is lower.

How do I calculate average tenure of employees who left?

Subtract Hire Date from Termination Date to get tenure in days for each terminated employee, then average those values. Exclude rows where either date is missing or where Termination Date is blank, which indicates current employees.

What does high turnover in the first 90 days indicate?

Terminations where tenure is under 90 days suggest onboarding problems, role mismatch, or hiring process issues. Calculate this by filtering to rows where tenure is less than 90 and comparing that count to total new hires in the same period.

Try it with your own file

DataMimi reads the file you actually have — merged cells, headers below row one, totals pasted at the bottom — and shows which rows and columns every number came from.

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