DART Rate Calculator
Formula: DART Rate = (DART Incidents × 1,000,000) ÷ Total Hours Worked
What is DART Rate?
The DART Rate stands for Days Away, Restricted, or Transferred Rate, and is a workplace safety metric used to track more serious recordable incidents—those that result in time off work, restricted duty, or job transfer.
This rate helps employers monitor not just how often incidents occur, but how significantly they affect workers’ ability to perform their regular duties.
Why is DART Rate Important?
Monitoring DART Rate is critical for:
- OSHA compliance and safety reporting
- Evaluating the severity and operational impact of workplace injuries
- Benchmarking safety across departments or sites
- Identifying trends that require safety improvements
- Fostering a proactive safety culture
DART Rate Formula
The standard formula to calculate DART Rate is:
DART Cases X 200,000 / Total Hours Worked
Where:
- DART Cases = Number of recordable incidents that resulted in days away from work, restricted duties, or transfers
- Total Hours Worked = Combined hours worked by all employees during the reporting period
- 200,000 = Base hours for 100 full-time employees (40 hrs/week × 50 weeks × 100 employees)
How to Lower Your DART Rate
To reduce DART Rate and improve safety performance:
- 🧰 Implement hazard controls and better PPE
- 📋 Conduct thorough incident investigations
- 📚 Provide regular safety training and refreshers
- 👷 Improve job design and ergonomic conditions
- 📢 Encourage early reporting of symptoms and discomfort
