OSHA Recordable Incident Rate Calculator
Calculate your organization's OSHA Recordable Incident Rate (RIR), also known as the Total Recordable Incident Rate (TRIR), to benchmark workplace safety performance against industry standards.
Total recordable injuries and illnesses during the period (work-related fatalities, injuries requiring medical treatment beyond first aid, lost-time cases, restricted work cases, job transfers).
Average number of full-time equivalent (FTE) employees during the measurement period.
If left blank, hours will be estimated as Employees × 2,000 hours/year (OSHA standard for one FTE). Enter actual hours for greater accuracy.
Select the time period covered. If using a custom period, enter actual total hours worked above.
Formula
RIR (TRIR) = (Number of Recordable Incidents × 200,000) ÷ Total Hours Worked
- 200,000 = baseline hours representing 100 full-time employees working 40 hrs/week × 50 weeks/year (100 × 2,000 hrs).
- Total Hours Worked = sum of all hours worked by all employees (including part-time, temporary, and seasonal workers) during the measurement period. Do not include vacation, sick leave, or other non-worked hours.
- Recordable Incidents = all work-related injuries and illnesses that meet OSHA recordability criteria (29 CFR 1904).
Example: 5 incidents, 250 employees, 500,000 hours worked → RIR = (5 × 200,000) / 500,000 = 2.0
Assumptions & References
- The 200,000-hour constant is defined by OSHA and represents 100 FTE workers × 2,000 hours/year (29 CFR Part 1904).
- When actual hours are not available, OSHA accepts the estimate of 2,000 hours per employee per year for full-time workers.
- Recordable incidents include: work-related fatalities, injuries or illnesses requiring medical treatment beyond first aid, lost workday cases, restricted work or job transfer cases, and diagnosed significant conditions (e.g., cancer, chronic irreversible disease, fractured or cracked bone, punctured eardrum).
- First-aid-only cases, pre-existing conditions not aggravated by work, and personal hygiene items are not recordable.
- Industry benchmark averages vary significantly by NAICS code. Consult the BLS Injuries, Illnesses, and Fatalities (IIF) program for sector-specific rates.
- OSHA requires employers with 10 or more employees (in most industries) to maintain OSHA 300 logs. High-hazard industries must electronically submit data via OSHA's Injury Tracking Application (ITA).
- Reference: OSHA Recordkeeping Rule — 29 CFR Part 1904.
- This calculator computes RIR/TRIR only. Separate calculations are needed for DART Rate (Days Away, Restricted, or Transferred) and Severity Rate.