Figuring Your Rates
Frequency & Severity Rates
What They Tell You
Frequency Rate- # of accidents per 100
employees.
 Severity Rate- # of lost workdays per 100
employees.

Why Calculate Them?
Compare your accident prevention progress
 Benchmark against others in your industry
 Friendly competition

What Do You Need?
Employee hours worked
 Industry Index
 Calculator

The Formula
Frequency Rate
No. of Accident X Total Man-hours worked
1,000,000 Man-hours
Severity Rate
No. of man-days lost X Total Man-hours
worked
1,000,000 Man-hours

Other Rates
Cost per employee hour
 Rates per internal variables
 Fleet accidents per million miles
 Claims per revenues/profit margin
