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

## How to Calculate Accident Frequency?

The following example problems outline how to calculate Accident Frequency.

Example Problem #1:

- First, determine the number of accidents.
- The number of accidents is given as: 30.

- Next, determine the employee hours worked.
- The employee hours worked is provided as: 150,000.

- 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

Test your knowledge using the equation and check your answer with the calculator..

AF = #A * 200,000 / HW** = ?**