TRIR Calculator
Calculate Total Recordable Incident Rate instantly. Enter OSHA recordable cases and total employee hours worked.
TRIR formula
The 200,000-hour basis represents the equivalent of 100 full-time employees working 40 hours per week for 50 weeks.
Use accurate OSHA recordkeeping data and actual hours worked. This calculator performs arithmetic only; it does not determine whether a case is OSHA-recordable.
Need to reduce the number, not just calculate it?
Trend review, investigations, high-risk program controls and accountability systems can help turn the metric into an improvement plan.
Discuss EHS support →Common questions
What does TRIR stand for?
Total Recordable Incident Rate. It normalizes OSHA-recordable cases to a 200,000-hour exposure basis.
Can I use this calculator for a single facility?
Yes. Use the recordable cases and hours worked for the same population and time period.
Does a lower TRIR always mean a stronger safety program?
TRIR is useful but incomplete. Mature programs also monitor severity, high-potential events, near misses, corrective-action closure, training quality, risk controls and leading indicators.