Calculator
Result
TRIR
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Formula:
TRIR = (Recordable Cases × OSHA Base) / Total Hours WorkedWith OSHA Base = 200000 hours.
Interpretation guide:
- < 1.0: Outstanding vs. many industrial benchmarks.
- 1.0–3.0: Typical range; investigate trends and leading indicators.
- > 3.0: Elevated risk; focus on root causes and controls.
TRIR Trend
Example Data Table
Edit cells directly then export — table drives the chart.
| Period / Site | Hours Worked | Recordable Cases | TRIR | Notes |
|---|
Formula Used & Methodology
The Total Recordable Incident Rate (TRIR) normalizes safety performance to a common labor-hour base so that different teams, projects, and companies can be compared fairly. The standard base is 200,000 hours, representing 100 full-time employees working 40 hours per week for 50 weeks per year.
TRIR = (Recordable Cases × OSHA Base) / Total Hours Worked
Default OSHA Base = 200,000 hoursExample: If there were 2 recordable cases over 40,000 hours, TRIR = (2 × 200,000) / 40,000 = 10. Adjust the base if your organization reports using a different normalization. Always verify recordable definitions align with your governing standard.