Calculate TRIR, DART, and other safety performance metrics for workplace safety analysis.
1. Total Hours Worked: Enter total employee work hours for the period.
2. Time Period: Select the time period for calculation (typically 1 year = 200,000 hours).
3. Incident Data: Enter the number of incidents by type.
4. Calculation: The calculator determines various safety metrics including TRIR, DART, and LTIFR.
| Metric | Formula | Description |
|---|---|---|
| TRIR | (Total Recordables × 200,000) ÷ Hours Worked | Total Recordable Incident Rate |
| DART | ((Lost Days + Restricted Days) × 200,000) ÷ Hours Worked | Days Away/Restricted/Transfer Rate |
| LTIFR | (Lost Time Incidents × 1,000,000) ÷ Hours Worked | Lost Time Injury Frequency Rate |
| Severity Rate | (Total Lost Days × 200,000) ÷ Hours Worked | Measures injury severity |