OSHA Total Recordable Incident Rate. Based on OSHA 29 CFR 1904.7. Results shown with the full formula so you can verify. Zero signup, zero tracking, zero data sent to a server — all calculation is client-side.
All OSHA 300-recordable injuries and illnesses for the reporting period.
Sum of all employee hours worked during the reporting period.
{
"rate": 1.2,
"base": 200000,
"formula": "(3 × 200,000) ÷ 500,000"
}TRIR (Total Recordable Incident Rate) is the single most-requested HSE metric in the United States and a core input to OSHA Form 300A, insurance Experience Modification Rate (EMR), and contractor prequalification for every major US industrial client. This free TRIR calculator uses the canonical OSHA 29 CFR 1904.7 formula — (Recordable Incidents × 200,000) ÷ Total Hours Worked — and shows the full formula + equivalent metrics (LTIR, LTIFR, DART) so you can report in whatever convention your audience expects.
The 200,000-hour base represents 100 full-time-equivalent workers × 40 hours/week × 50 weeks/year. Outside the US (ISO 45001, IOGP, HSE UK) the convention is a 1,000,000-hour base producing LTIFR — we calculate both so you don't have to convert by hand.
Used by Aramco, ADNOC, QatarEnergy, and Tier-1 US contractors (Bechtel, Fluor, Kiewit) for prequalification. Our results cite the BLS 2024 SOII industry benchmarks so you can see where your rate sits against your specific sector — healthcare 4.5, manufacturing 3.2, construction 2.5, oil & gas 0.8.
TRIR = (Recordable Incidents × 200,000) ÷ Hours WorkedA 150-worker contractor running 2,000 hours/worker = 300,000 total hours. 4 recordables during the year. TRIR = (4 × 200,000) ÷ 300,000 = 2.67. Against the US construction benchmark of 2.5, this is effectively at industry average.
An upstream operator with 500 workers averaging 2,000 hours/year = 1,000,000 total hours. 2 recordables. TRIR = (2 × 200,000) ÷ 1,000,000 = 0.4. Against the US oil & gas benchmark of 0.8 and IOGP global average of 0.71 (1M base), this is top-decile performance.
A 50-worker long-term care facility with 100,000 total hours. 3 recordables — mostly patient-handling MSDs. TRIR = (3 × 200,000) ÷ 100,000 = 6.0. Against the healthcare benchmark of 4.5, this indicates ergonomics program opportunity.
A TRIR below 3.0 is considered acceptable, below 1.0 is world-class. The US private-industry average is 2.7 (BLS 2024). Construction 2.5, manufacturing 3.2, oil & gas 0.8, healthcare 4.5. Always compare against YOUR specific industry.
TRIR uses OSHA's 200,000-hour base and counts all recordable incidents (US standard). LTIFR uses 1,000,000-hour base and counts only lost-time injuries (ISO/ILO international standard). LTIFR numbers are roughly 5× the equivalent TRIR for the same performance.
TRIR = (Recordable Incidents × 200,000) ÷ Total Hours Worked. Example: 3 recordables over 500,000 hours = 1.2. The 200,000 base represents 100 FTE × 40 hr/week × 50 weeks.
Yes — it uses the canonical OSHA 29 CFR 1904.7 formula. The same math your OSHA inspector, your EMR broker, and IOGP use. Result shown with full formula so you can verify.
Yes — the calculation is identical to what OSHA requires on Form 300A. But you still need to maintain the underlying OSHA 300 log of individual cases, plus OSHA 301 incident reports, in the actual submission.
Any work-related injury or illness resulting in: medical treatment beyond first aid, days away from work, restricted work or job transfer, loss of consciousness, significant injury/illness diagnosed by a healthcare professional, or death. Full list in 29 CFR 1904.7.
It depends on the host-employer/contractor relationship. OSHA counts only employees who fall under the employer's recordkeeping duty. Contractors with their own OSHA responsibility count their own cases. For prequalification systems (ISN, Avetta), you often report both your direct TRIR and flow contractor TRIR into project-level numbers.
No. Most major US industrial clients require TRIR below a specific threshold (typically 1.0-2.0 depending on industry and client). Zero TRIR is rare at meaningful scale and often raises underreporting concerns.
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