Recordable Incident Rate (TRIR) Calculator

The formula to calculate TRIR is:

Number of recordable incidents in financial year / Hours worked in financial year x 200,000

Example:

In 2022, a construction company experienced 12 recordable incidents. The company has a workforce of 800 employees. During 2022, total hours worked by all employees was 1,600,000 hours.

To calculate the company's TRIR:

• Number of recordable incidents: 12
• Total hours worked (for all company employees) during the year: 1,600,000 hours

Use the Formula:

$\text{TRIR} = \left( \frac{\text{Number of recordable incidents}}{\text{Total hours worked}} \right) \times 200,000$

$\text{TRIR} = \left( \frac{12}{1,600,000} \right) \times 200,000 = 1.5$

So, the TRIR for the construction company in 2022 is 1.5. If we were to compare it to an industry standard, let's say the average construction industry rate is 2.5, then the company's TRIR of 1.5 is below the industry average.

In summary:

• Number of recordable incidents during the year: 12
• Hours worked during the year: 1,600,000
• TRIR = 1.5

• LTIFR (Lost Time Injury Frequency Rate): Measures lost-time injuries per million hours worked. Only includes injuries that result in time away from work.
• TRIR (Total Recordable Incident Rate): Measures all OSHA recordable incidents per 200,000 hours worked. Includes a broader range of incidents including medical treatment cases.
• AFR (Accident Frequency Rate): Measures accidents per million hours worked. Definition varies by region and organization.

What incidents are included in TRIR?

TRIR includes all OSHA recordable incidents: death, loss of consciousness, days away from work, restricted work activity, job transfer, and medical treatment beyond first aid.

Why does TRIR use 200,000 hours?

200,000 hours represents the equivalent of 100 employees working 40 hours per week for 50 weeks per year (100 × 40 × 50 = 200,000).

What is a good TRIR rate?

A good TRIR varies by industry. Generally, rates below 3.0 are considered good, but compare against your specific industry benchmarks.

How often should TRIR be calculated?

TRIR should be calculated monthly for trending purposes and annually for official reporting and benchmarking.