The DART Rate Calculator is a tool use to measure the safety performance of a workplace by calculating the Days Away, Restricted, or Transferred (DART) Rate. This metric is a key indicator of workplace safety and is use by Occupational Safety and Health Administration (OSHA) and employers to assess workplace injury trends.
A high DART rate indicates a higher frequency of work-related injuries or illnesses that result in employees missing work, being placed on restricted duty, or being transferred to another role. By monitoring and reducing DART rates, organizations can improve workplace safety, lower workers' compensation costs, and enhance operational efficiency.
This calculator is widely use in industries such as construction, manufacturing, healthcare, and logistics, where workplace safety is critical.
Formula for DART Rate Calculator
The DART rate is calculated using the following formula:
DART Rate = (Total DART Incidents × 200,000) / Total Employee Hours Worked
Where:
- Total DART Incidents = The number of workplace injuries and illnesses that resulted in days away from work, restricted work, or job transfer
- 200,000 = A standard benchmark representing 100 full-time workers working 40 hours per week for 50 weeks
- Total Employee Hours Worked = The total number of hours worked by all employees during the reporting period
This calculation standardizes injury rates across companies of different sizes, allowing fair comparisons of workplace safety performance.
DART Rate Estimation Table
The table below provides estimated DART rates for various workplace scenarios.
| Total DART Incidents | Total Employee Hours Worked | Estimated DART Rate |
|---|---|---|
| 5 | 500,000 | 2.00 |
| 10 | 750,000 | 2.67 |
| 15 | 1,000,000 | 3.00 |
| 20 | 1,500,000 | 2.67 |
| 25 | 2,000,000 | 2.50 |
A lower DART rate indicates a safer workplace, while a higher DART rate signals the need for improved safety measures.
Example of DART Rate Calculator
A manufacturing company reported the following safety data for the past year:
- Total DART Incidents = 10
- Total Employee Hours Worked = 750,000
Step 1: Apply Values to the Formula
DART Rate = (Total DART Incidents × 200,000) / Total Employee Hours Worked
DART Rate = (10 × 200,000) / 750,000 = 2.67
This means that for every 100 full-time workers, the company had 2.67 cases of injuries or illnesses that led to days away, restricted work, or job transfers.
Most Common FAQs
The DART rate helps employers and regulatory agencies track workplace safety trends, identify areas for improvement, and ensure compliance with OSHA regulations.
A DART rate of 2.0 or lower is generally consider acceptable in most industries. However, industries with higher risks, such as construction, may have slightly higher averages.
Companies can lower their DART rate by improving workplace safety training, enforcing safety protocols, investing in protective equipment, and conducting regular safety audits.