This calculator helps you determine your workplace injury incident rate, commonly used by OSHA (Occupational Safety and Health Administration).

1. Select Input Method:

• Use Total Hours: If you know the total number of hours worked by all employees during the period (usually one year).
• Use Employees & Avg. Hours: If you know the total number of employees and the average hours each employee worked during the period.

2. Enter Data:

• Number of Recordable Injuries: Enter the total count of work-related injuries and illnesses that meet OSHA’s recording criteria for the period.
• Total Hours Worked: (If selected) Enter the sum of all hours worked by all employees. Do not include vacation, sick leave, or holiday hours.
• Number of Employees: (If selected) Enter the average number of employees during the period.
• Average Hours Worked per Employee: (If selected) Enter the average hours an employee worked during the period (e.g., 2000 hours for a typical full-time employee for a year).

3. Calculate:

Click the “Calculate” button.

Formula Used:

(Number of Recordable Injuries × 200,000) / Total Hours Worked by All Employees

The 200,000 figure represents the number of hours 100 full-time employees would work in a year (100 employees × 40 hours/week × 50 weeks/year).

Result:

The calculator will display the injury rate. This rate indicates the number of injuries per 100 full-time equivalent employees over a one-year period.

Reset:

Click the “Reset” button to clear all input fields and results.