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TRIR Calculator.

Calculate total recordable incident rate from incidents and hours worked.

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TRIR: 3

TRIR

3.000

FAQs

How does the trir calculator work?

Enter the requested values to receive a deterministic result. No live market, tax, or jurisdiction data is inferred.

Cite this calculator

Canonical URL: https://mathify.one/fr/finance/trir

Cite as: Mathify. (2026). Calculatrice: TRIR. https://mathify.one/fr/finance/trir

Use Cases

Annual Safety Performance Review

Calculate your company's TRIR at year-end to evaluate safety performance, set improvement goals, and report to stakeholders.

Example: A construction company with 5 incidents and 500,000 hours worked has a TRIR of 2.0.

Benchmarking Against Industry Standards

Use TRIR to compare your safety record with industry peers and identify if your incident rate is above or below average.

Example: Compare your TRIR of 4.5 to the industry average of 3.2 to spot areas needing attention.

Frequently Asked Questions

What is TRIR and why is it important?
TRIR (Total Recordable Incident Rate) is a safety metric that indicates the number of recordable incidents per a set number of hours worked (usually 200,000). It helps companies benchmark safety performance and identify areas for improvement.
How is TRIR calculated?
TRIR is calculated by multiplying the number of recordable incidents by the normalization base (typically 200,000) and then dividing by the total hours worked. The formula is: (Incidents × Base) ÷ Hours Worked.
What is a good TRIR?
A lower TRIR indicates better safety performance. Industry averages vary, but a TRIR below 3.0 is often considered good, while top-performing companies aim for below 1.0. Use this calculator to compare your rate against industry benchmarks.

Tips & Common Mistakes

Tips

  • Ensure you include all recordable incidents as defined by OSHA or your local regulatory body—this includes fatalities, days away from work, restricted work, or medical treatment beyond first aid.
  • Use the total hours actually worked by all employees, including overtime and temporary workers, to get an accurate rate.
  • The standard normalization base is 200,000 hours (equivalent to 100 full-time employees working 40 hours per week for 50 weeks). Adjust if your industry uses a different base.

Common Mistakes to Avoid

  • Using the number of employees instead of total hours worked—this leads to an incorrect TRIR.
  • Forgetting to include all recordable incidents, such as those requiring only first aid, which should not be counted.
  • Using a normalization base other than 200,000 without adjusting the calculation, which can misrepresent your rate.

Last updated: August 13, 2026