DART Rate Calculator
Enter your DART cases and total hours worked to calculate your DART rate.
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Enter DART cases and hours worked to see the rate.
Worked example
With these example inputs:
- DART cases3
- Hours worked250,000
DART rate: 2.40
- Full-time equivalents125
- With one incident fewer1.60
- Per million hours12
Frequently asked questions
How is the DART rate calculated?
Multiply DART cases by 200,000 and divide by total hours worked. Three cases over 250,000 hours gives a DART rate of 2.4.
How does DART differ from TRIR?
DART counts only cases with days away, restricted duty or job transfer, a subset of all recordables. It focuses on the more serious injuries that change how people work.