Additional ISNetworld® Resources

TRIR Calculator



TRIR Calculation- What is the TRIR (total recordable incident rate?)


Your TRIR (total recordable incident rate) is a mathematical calculation.

trir - total recordable incident rate -trir calculation

Multiply the total number of OSHA recordable incidents your company had during a certain time frame  by 200,000 (most people calculate their TRIR for a certain year).

Take this answer and divide it by the total number of hours worked by all employees, including owners, during the same exact time frame.

For example.  Let’s calculate your TRIR for an entire year.

First add up all the OSHA recordable incidents your company had during the year.  Let’s say that you had 3 OSHA recordables during 2021.

Multiply 3 times 200,000.

3 OSHA recordables X 200,000 = 600,000

Now divide 600,000 by the total number of hours worked by all employees, including the owners, during that same year.

If you have 25 employees then the total number of hours worked would be about 50,000 hours (25 employees X 2,000 hours per employee).

600,000 / 50,000 = 12.0

In this example your TRIR would equal 12.0, which is very high.

A good TRIR is 3.0 or less.  A perfect TRIR is zero.  Many companies in ISNetworld® will grade your company based on your TRIR score so it is very important that you keep it as low as possible.

For more information about the TRIR and the methods that I use to help my clients lower their TRIR, read our book:

TRIR: The definitive guide to understanding your TRIR and how it affects your business, your pre-qualification paperwork, and your ISNetworld® account

If you have any questions about your TRIR, please don’t hesitate to give us a call (Conrad 985-778-8304.)


Hire us today, and by the time you wakeup tomorrow, your ISNetworld® account will be 100% complete.

Click Here to find out how we can make your company ISNetworld compliant by tomorrow.

In this short video Conrad explains why he specializes in helping small businesses become ISNetworld® Certified.

Call Conrad 985.778.8304, he will be happy to answer any questions you may have about ISNetworld®.

Scan the QR code to download Conrad’s contact info.

ISNetworld Certification - Contact info - QR Code for Conrad Cooper

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