DART Rate Calculator

The formula to calculate a DART rate is:

Number of DART cases in financial year / Hours worked in financial year x 200,000

Example:

In 2022, a manufacturing company experienced 8 DART cases. The company has a workforce of 500 employees. During 2022, total hours worked by all employees was 1,000,000 hours.

To calculate the company's DART rate:

• Number of DART cases: 8
• Total hours worked (for all company employees) during the year: 1,000,000 hours

Use the Formula:

$\text{DART Rate} = \left( \frac{\text{Number of DART cases}}{\text{Total hours worked}} \right) \times 200,000$

$\text{DART Rate} = \left( \frac{8}{1,000,000} \right) \times 200,000 = 1.6$

So, the DART rate for the manufacturing company in 2022 is 1.6. If we were to compare it to an industry standard, let's say the average manufacturing industry rate is 3.0, then the company's DART rate of 1.6 is below the industry average.

In summary:

• Number of DART cases during the year: 8
• Hours worked during the year: 1,000,000
• DART Rate = 1.6

What is included in DART cases?

DART cases include incidents that result in days away from work, restricted work activity, or job transfer due to work-related injuries or illnesses.

How is DART different from TRIR?

DART is a subset of TRIR. While TRIR includes all recordable incidents, DART only includes the more severe cases that result in time away, restrictions, or transfers.

What is a good DART rate?

A good DART rate varies by industry. Compare your rate against industry benchmarks available from OSHA and focus on continuous improvement.

• DART rates are intended as a guide only and should be interpreted carefully.
• DART rates are not recommended for small businesses, where changes to the number of incidents are likely to result in a DART rate that is much larger or smaller than expected.