Enter the number of accidents and the employee hours worked into the Accident Frequency Calculator. The calculator will evaluate the Accident Frequency.

## Accident Frequency Formula

The following two example problems outline the steps and information needed to calculate the Accident Frequency.

AF = A * 200,000 / HW
• Where AF is the Accident Frequency (accidents per 200,000 hours worked)
• #A is the number of accidents
• HW is the employee hours worked

To calculate the accident frequency rate, multiply the number of accidents by 200,000 then divide by the employee hours worked.

## How to Calculate Accident Frequency?

The following example problems outline how to calculate Accident Frequency.

Example Problem #1:

1. First, determine the number of accidents.
• The number of accidents is given as: 30.
2. Next, determine the employee hours worked.
• The employee hours worked is provided as: 150,000.
3. Finally, calculate the Accident Frequency using the equation above:

AF = #A * 200,000 / HW

The values provided above are inserted into the equation below and computed.

AF = 30 * 200,000 / 150,000 = 40 (accidents per 200,000 hours worked)

Example Problem #2:

For this problem, the variables required are provided below:

number of accidents = 50

employee hours worked = 400,000