People are usually a company’s biggest cost. These HR and workforce calculators measure turnover and absence, convert hours into full-time equivalents, price labor and overtime, and compute workplace safety rates such as TRIR and DART.
HR & Workforce calculators (14)
- Absence Percentage Calculator
- Attrition Rate Calculator
- Turnover Rate Calculator
- Bradford Factor Calculator
- Full-time Equivalent (FTE) Calculator
- Tenure Calculator
- Billable Hours Calculator
- Bill Rate Calculator
- HR Software ROI Calculator
- DART Rate Calculator
- TRIR Calculator
- Remote vs. On-Location Workers Calculator
- 12-Hour Shift Pay Calculator
- Selling Leave Days Calculator
About HR & Workforce calculators
Workforce metrics compare a count of events with a headcount or hours worked. Turnover and attrition use the average number of employees; absence percentage uses scheduled days; the Bradford Factor squares the number of absence spells to flag disruptive patterns. Safety rates such as TRIR and DART multiply incidents by 200,000 and divide by hours worked, so firms of different sizes can be compared.
Cost tools show the loaded cost of an employee, the bill rate a staffing firm needs, the savings from remote work and the payback on HR software. Pay tools handle 12-hour shifts, selling unused leave and tenure, and the full-time equivalent calculator converts part-time hours into FTE for budgeting.
Measuring your workforce
Choose one period and one definition and stay with it. Turnover and attrition divide leavers by average headcount; absence percentage divides days lost by days scheduled. The Bradford Factor Calculator adds a pattern signal, because frequent short absences score higher than one long absence.
Cost matters as much as counts. The Labor Cost Calculator adds taxes and benefits to wages, and the Bill Rate Calculator marks that cost up to a rate a client can be charged.
- Staffing. FTE, man-hours and billable-hours calculators size teams and projects.
- Safety. TRIR and DART use the OSHA 200,000-hour base for comparisons across sites.
- Pay. Shift pay, overtime and selling leave days convert hours into money.
What you can calculate
- Absence Percentage Calculator: Calculate the share of working days lost to employee absence.
- Attrition Rate Calculator: Measure how many employees leave over a period without being replaced one-for-one.
- Turnover Rate Calculator: Calculate employee turnover for a year or any period.
- Bradford Factor Calculator: Score absence patterns, giving extra weight to frequent short spells.
- Full-time Equivalent (FTE) Calculator: Convert part-time and full-time hours into full-time equivalent staff.
- Tenure Calculator: Find length of service between two dates.
- Billable Hours Calculator: Turn a revenue goal into billable hours and utilization targets.
- Bill Rate Calculator: Mark up a pay rate to a bill rate that covers burden and margin.
- HR Software ROI Calculator: Estimate the payback on HR software from time saved and fewer errors.
- DART Rate Calculator: Compute the OSHA Days Away, Restricted or Transferred rate.
- TRIR Calculator: Compute the Total Recordable Incident Rate used in workplace safety reporting.
- Remote vs. On-Location Workers Calculator: Compare yearly cost per employee for remote and on-site staff.
- 12-Hour Shift Pay Calculator: Calculate pay for 12-hour shifts including overtime and shift differential.
- Selling Leave Days Calculator: Value unused leave days you plan to sell back to your employer.
Frequently asked questions
Are the HR formulas legal advice?
No. They are standard measures for planning and reporting. Employment rules vary by country and state, so check local law for pay and leave.
Which period should I measure over?
Use the same period (month, quarter or year) for every input so the ratios stay comparable.
How do I calculate turnover rate?
Divide the number of leavers by the average headcount for the period and multiply by 100.
Are the safety rates the OSHA method?
Yes. TRIR and DART use the OSHA formula with the 200,000-hour base.