HR tools library
Professional HR tools for data-driven decisions
Use free HR calculators for turnover, retention, hiring cost, overtime, leave, workforce planning, absence, and productivity.
HR Hub provides interactive workforce calculators alongside original explanations, transparent methods, source links, and decision boundaries for retention, recruiting, payroll, attendance, and workforce planning.
Browse HR calculators
Turnover Rate Calculator
Measure voluntary and involuntary employee turnover.
Employee Retention Rate Calculator
Measure what share of the starting workforce remained through a selected period.
Employee Turnover Cost Calculator
Estimate documented replacement costs from editable recruiting, onboarding, and other inputs, with separate advanced vacancy and ramp-up scenarios.
Cost Per Hire Calculator
Calculate average included recruitment cost per counted hire for a defined period.
Overtime & Timecard Calculator
Estimate regular and overtime earnings from user-supplied weekly hours, rate, threshold, and multiplier.
Leave/Holiday Entitlement Calculator
Estimate a policy-defined leave balance under a monthly accrual convention.
Employee Productivity Calculator
Calculate a simple team or process output-per-labor-hour indicator.
Absenteeism/Bradford Factor Calculator
Calculate a frequency-weighted score for policy-included absence spells and days.
Headcount Planning Calculator
Model gross planned hires, end-state headcount, and an illustrative base-salary run-rate.
Time to Fill Calculator
Calculate average calendar days from one documented requisition start event to offer acceptance for included filled roles.
PTO Accrual Calculator
Estimate PTO accrued under an even monthly policy and subtract approved PTO used.
FTE Calculator
Convert labor hours into full-time-equivalent staffing levels.
Salary Proration Calculator
Estimate policy-dependent partial-period base salary for joins or exits.
Offer Acceptance Rate Calculator
Measure the share of extended offers accepted under a documented counting policy.
Compa-Ratio Calculator
Compare employee pay to the midpoint of a salary range.
Shift Differential Calculator
Estimate a percentage-based premium for employer-policy-designated qualifying hours.
Absence Rate Calculator
Measure workforce time lost to absence as a percentage of available workdays.
Read practical HR guidance
- Turnover Rate vs. Absence Rate: Definitions, Denominators, and Limits — Compare a selected-separation rate with an equal-schedule absence-rate scenario, including their numerators, denominators, scope, and interpretation limits.
- Cost Per Hire vs. Headcount Planning: Cost Average and Staffing Scenario Compared — Compare a recruitment-cost average with a publisher-defined growth and backfill scenario, including inputs, units, assumptions, and appropriate uses.
- Overtime vs. Leave Entitlement: Separate Pay and Policy Scenarios — Compare a limited overtime-pay estimate with a policy-based leave scenario, including the different inputs, legal boundaries, and records required for review.
- Turnover Rate Calculator Guide: What the Metric Means and How HR Teams Use It — Learn what turnover rate measures, why voluntary versus involuntary exits matter, and how HR teams use turnover analysis in retention and workforce planning.
- Employee Retention Rate Guide: How to Measure the Starting Workforce That Stayed — Learn how cohort-based employee retention rate works, why it differs from turnover rate, and how HR teams use both measures in workforce planning.
- Employee Turnover Cost Guide: How to Build a Transparent Replacement-Cost Estimate — Learn how to estimate employee turnover cost with visible recruiting, onboarding, vacancy, and ramp-up assumptions instead of a fixed salary multiplier.
- Cost Per Hire Calculator Guide: How to Read Recruiting Cost in Context — Understand what cost per hire measures, why it matters to recruiting and finance teams, and how to use the result with hiring-volume and planning context.
- Overtime and Timecard Calculator Guide: How to Review Pay Exposure and Hours Worked — Learn how a simple single-rate overtime scenario can document entered hours, breaks, thresholds, and premium assumptions before qualified payroll review.
Publisher information
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