TRIFR Calculator
Formula: TRIFR = (Total Recordable Injuries × 1,000,000) ÷ Total Hours Worked
What is the Total Recordable Injury Frequency Rate (TRIFR)?
Total Recordable Injury Frequency Rate (TRIFR) is a key safety performance indicator used to measure the rate of workplace injuries and illnesses that are severe enough to be recorded according to occupational health and safety regulations. It helps organizations monitor safety performance and benchmark against industry standards.
TRIFR includes all recordable incidents—not just those resulting in lost time—such as:
- Lost Time Injuries (LTI)
- Restricted Work Injuries
- Medical Treatment Injuries
Why is TRIFR Important?
Tracking TRIFR is essential for the following reasons:
- Monitor Overall Safety Performance: Reflects the frequency of all significant injuries.
- Standardized Benchmarking: Enables comparison across departments, sites, or industries.
- Guides Safety Improvements: Highlights trends and high-risk areas for focused safety measures.
- Supports Compliance Reporting: Many regulations require reporting of recordable incidents.
TRIFR Formula
The formula to calculate TRIFR is:
Total Hours Worked Total Recordable Injuries X 1,000,000 / Total Hours Worked
Where:
- Total Recordable Injuries: Number of OSHA- or regulator-defined recordable injuries and illnesses.
- Total Hours Worked: Total hours worked by all employees over a defined period.
- The multiplier 1,000,000 standardizes the rate per million hours worked.
How to Reduce TRIFR?
Reducing TRIFR involves proactive safety and health practices:
- Conduct regular hazard assessments
- Train workers in safe procedures
- Encourage prompt incident reporting
- Investigate and learn from near misses
- Promote a safety-first culture
- Continuously improve PPE and safety tools
