1. What is Total Recordable Injury Rate?

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

2. How Does the Calculator Work?

The calculator uses the TRIR formula:

Where:

• Recordable Incidents — Total number of OSHA recordable injuries and illnesses
• Hours Worked — Total hours worked by all employees during the period
• 200,000 — Base for 100 full-time equivalent workers (100 workers × 2000 hours/year)

Explanation: The formula standardizes injury rates across organizations of different sizes by using a common base of 100 full-time employees working 2000 hours each per year.

3. Importance of TRIR Calculation

Details: TRIR is a key performance indicator for workplace safety programs. It helps organizations benchmark their safety performance, identify areas for improvement, and track safety trends over time. Lower TRIR values indicate better safety performance.

4. Using the Calculator

Tips: Enter the total number of recordable incidents and total hours worked by all employees during the measurement period. Both values must be positive numbers, with hours worked greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What constitutes a recordable incident?
A: OSHA recordable incidents include work-related fatalities, injuries requiring medical treatment beyond first aid, lost time injuries, restricted work cases, and diagnosed occupational illnesses.

Q2: What is considered a good TRIR?
A: Industry benchmarks vary, but generally a TRIR below 3.0 is considered good, below 1.0 is excellent, and the average across all industries is typically around 3.0-4.0.

Q3: How often should TRIR be calculated?
A: Most organizations calculate TRIR annually, but it can be calculated for any period (quarterly, monthly) to track safety performance more frequently.

Q4: Are there limitations to TRIR?
A: TRIR doesn't measure severity of incidents, near misses, or property damage. It should be used alongside other safety metrics for a comprehensive view of safety performance.

Q5: How does TRIR differ from other safety metrics?
A: Unlike DART (Days Away/Restricted or Transfer) rate which focuses on serious incidents, TRIR includes all recordable incidents regardless of severity.