incident rates

TRIR Calculator

Free TRIR calculator using the OSHA formula: (Recordable Incidents × 200,000) ÷ Hours Worked. Required for OSHA 300A, insurance EMR, Aramco/ADNOC prequalification.

All OSHA 300-recordable injuries and illnesses for the reporting period.

Sum of all employee hours worked during the reporting period.

Result
{
  "rate": 1.2,
  "base": 200000,
  "formula": "(3 × 200,000) ÷ 500,000"
}
Formula
TRIR = (Recordable Incidents × 200,000) ÷ Hours Worked
Regulation

OSHA 29 CFR 1904.7 · Source

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Free for any website, blog, or course — MIT / CC BY 4.0. Attribution stays visible.

<script src="https://tools.smartqhse.com/embed.js" data-calc="trir-calculator"></script>
Optional attributes: data-theme, data-width, data-min-height. Works on any CMS (WordPress, Webflow, Ghost, plain HTML).

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