TRIR Calculator
The Total Recordable Incident Rate (TRIR) measures workplace safety performance by calculating the number of OSHA-recordable injuries and illnesses per 100 full-time workers per year. Using the standard formula (Recordables × 200,000 ÷ Total Hours Worked), TRIR helps oil and gas contractors track safety metrics and meet operator prequalification requirements. Most operators set TRIR thresholds between 0.5 and 1.5 for contractor eligibility.
Total recordables in the measurement period
All employee hours in the same period
Enter your incident count and hours worked to calculate
This calculator uses the standard OSHA formula: TRIR = (Recordables × 200,000) ÷ Total Hours Worked. Common operator thresholds range from 0.5 to 1.5 depending on the operator and contract type. For 3-year rolling TRIR calculations and EMR integration, see BasinCheck full features.
The TRIR Formula Explained
TRIR = (Recordable Incidents × 200,000) ÷ Total Hours Worked
The 200,000 constant represents 100 full-time equivalent employees working 40 hours per week for 50 weeks. This standardization allows comparison across companies of different sizes.
Example: A company with 5 recordable incidents and 750,000 total hours worked would have a TRIR of (5 × 200,000) ÷ 750,000 = 1.33
Common Operator TRIR Thresholds
Major Operators
Large operators like Chevron, ExxonMobil, and Shell often require TRIR below 1.0, with some high-risk work requiring below 0.5.
ISNetworld/Veriforce
Contractor management systems display your TRIR prominently. Operators can filter contractors by safety metrics including 3-year rolling TRIR.
About Thresholds
TRIR thresholds vary by operator, region, and work type. High-risk activities (drilling, well intervention) often have stricter requirements than lower-risk support services. Always verify specific requirements with the operator's contractor management team or ISNetworld.
Track TRIR Automatically with BasinCheck
BasinCheck calculates your TRIR in real-time from incident data. See 3-year rolling averages, what-if scenarios, and get alerts before you breach operator thresholds.
Real-Time TRIR Dashboard
Monitor current TRIR, DART, and other safety metrics as incidents are logged. No manual calculations needed.
3-Year Rolling Average
Track the 3-year rolling TRIR that operators request during prequalification. See trends and projections.
Threshold Alerts
Set custom TRIR thresholds based on your operators. Get notified when you're approaching limits.
TRIR Calculator FAQ
Common questions about Total Recordable Incident Rate calculations
Automate Your Safety Metrics
Stop calculating TRIR manually. BasinCheck tracks incidents, calculates rates, and generates the reports operators need.