1. What is TRIR?

The Total Recordable Incident Rate (TRIR) is a standard safety metric used to compare injury and illness incidence rates across industries and companies. It represents the number of recordable incidents per 100 full-time workers during a one-year period.

2. How Does the Calculator Work?

The calculator uses the TRIR formula:

Where:

• Recordable Incidents — OSHA-recordable injuries and illnesses
• Total Hours Worked — Sum of all employee work hours in the period
• 200,000 — Equivalent of 100 employees working 40 hrs/week for 50 weeks

Explanation: The 200,000 multiplier standardizes the rate to represent what 100 full-time employees would experience in a year.

3. Importance of TRIR Calculation

Details: TRIR is a key performance indicator for workplace safety programs, used for benchmarking, regulatory compliance, and identifying safety improvement opportunities.

4. Using the Calculator

Tips: Enter the total number of OSHA-recordable incidents and the total hours worked by all employees during the measurement period.

5. Frequently Asked Questions (FAQ)

Q1: What counts as a recordable incident?
A: OSHA recordables include work-related injuries/illnesses resulting in death, days away from work, restricted work, medical treatment beyond first aid, or loss of consciousness.

Q2: What is a good TRIR?
A: The average TRIR varies by industry. Generally, below 3.0 is considered good, and below 1.0 is excellent for most industries.

Q3: How often should TRIR be calculated?
A: Typically calculated annually, but can be calculated quarterly for more frequent monitoring.

Q4: What's the difference between TRIR and DART?
A: DART (Days Away/Restricted or Transfer) only includes incidents with days away from work or restricted duty, while TRIR includes all recordables.

Q5: Can TRIR be zero?
A: Yes, if no recordable incidents occurred during the measurement period.