🛠️ TRIR Calculator
Measure safety performance by normalizing total OSHA recordable incidents against labor hours.
Include all OSHA recordables: medical treatment, restricted work, days away, or fatalities.
Sum all employee labor hours, including overtime and supervised contractors.
How to Use This Calculator
Compile OSHA Logs
Extract the number of recordable incidents from OSHA Form 300 or internal safety tracking systems.
Tally Labor Hours
Sum regular and overtime hours for all employees during the period. Include supervised contractors if applicable.
Calculate TRIR
Enter your numbers to normalize incidents per 200,000 hours, the OSHA baseline for 100 full-time workers.
Benchmark & Act
Compare rates to industry peers, identify root causes, and prioritize safety improvements.
Formula
TRIR = (Recordable Incidents × 200,000) ÷ Total Hours Worked
200,000 hours ≈ 100 workers × 40 hours/week × 50 weeks.
Include restricted duty, medical treatment, days away, and fatal incidents in the numerator.
To compare across sites, recalculate using each site’s specific labor hours.
Tracking TRIR monthly or quarterly highlights safety trends. Combine with DART and severity rates for a complete view of incident performance.
Full Description
The Total Recordable Incident Rate (TRIR) is a fundamental OSHA metric that normalizes workplace injuries and illnesses based on hours worked. It enables fair comparisons across companies of different sizes and is often requested by clients during contractor prequalification.
Safety leaders monitor TRIR to evaluate the effectiveness of training, personal protective equipment (PPE), and hazard mitigation programs. High TRIR values may trigger insurance premium increases, regulatory scrutiny, or reputational risks.
Use Cases
- Annual OSHA reporting and corporate sustainability disclosures
- Contractor qualification for construction, energy, and manufacturing projects
- Safety scorecards for executive leadership and frontline teams
- Root cause analysis when incident trends increase
Frequently Asked Questions
What incidents are considered recordable?
OSHA recordables include fatalities, days away from work, restricted duty, job transfers, medical treatment beyond first aid, or loss of consciousness.
How do I benchmark my TRIR?
Compare against Bureau of Labor Statistics (BLS) industry averages or clients’ safety requirements. Lower TRIR indicates safer operations.
Should contractors be included?
Include supervised contractors whose work you control. Independent contractors typically report incidents under their own TRIR.
Can TRIR be zero?
Yes—organizations with no recordable incidents during the period will have a TRIR of zero, indicating exemplary safety performance.