TRIR Calculator
Enter the number of recordable incidents and total hours worked to find the TRIR.
How TRIR is calculated
TRIR (Total Recordable Incident Rate) is calculated as TRIR = (recordable incidents × 200,000) / total hours worked. The 200,000 constant represents 100 employees working 40 hours per week for 50 weeks a year, standardizing the rate to a consistent basis regardless of workforce size.
This lets organizations of different sizes compare safety performance on equal footing — a rate of 2.0 means that, scaled to 100 full-time workers over a year, you'd expect about 2 recordable incidents.
Frequently asked questions
What counts as a "recordable incident"?
Recordable incident criteria vary by jurisdiction and regulatory body — in the US, OSHA defines specific criteria including incidents resulting in death, days away from work, restricted work, medical treatment beyond first aid, or loss of consciousness. Check your local regulator's definitions for accurate reporting.
What's a good TRIR?
This varies significantly by industry — office environments typically have very low TRIR, while construction and manufacturing tend to run higher. Compare your rate to industry-specific benchmarks rather than a single universal target.
Why 200,000 hours as the base rather than something else?
200,000 hours represents 100 employees working a standard full-time schedule for a year, which was established as a round, easily interpretable benchmark base by regulatory bodies for safety rate reporting.