📋 TRIR Calculator

Total Recordable Incident Rate — recordable cases per 200,000 hours worked (OSHA basis).

Total recordable incidents

Total hours worked (all employees, the period)

TRIR

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TRIR = (Recordable incidents × 200,000) ÷ total hours worked. The 200,000 base represents 100 full-time workers over a year. A recordable is any work-related death, days-away case, restricted-work/transfer case, or medical treatment beyond first aid.