Accident Frequency Rate Calculator
Formula: AFR = (Accidents × 1,000,000) ÷ Total Hours Worked
What is Accident Frequency Rate (AFR)?
The Accident Frequency Rate (AFR) is a widely used safety metric that measures how frequently workplace accidents occur over a set number of working hours. Unlike general injury counts, AFR provides a standardized indicator that helps organizations monitor safety performance and compare it across departments, sites, or industries.
AFR is typically calculated per 1,000,000 hours worked, which normalizes the metric regardless of workforce size.
Why is AFR Important?
Tracking AFR allows organizations to:
- Evaluate safety performance
- Identify accident trends
- Reduce future incidents
- Meet compliance and audit requirements
- Promote a culture of safety and prevention
Accident Frequency Rate Formula
The standard formula to calculate AFR is:
Number of Accidents X 1,000,000 / Total Hours Worked
Where:
- Number of Accidents: Total number of reported workplace accidents during the measurement period.
- Total Hours Worked: Combined hours worked by all employees.
- 1,000,000: A standardizing factor for comparison across companies.
How to Reduce Accident Frequency Rate
To reduce your AFR and improve overall safety:
- Conduct regular safety inspections
- Offer continuous safety training
- Use appropriate PPE and safety equipment
- Analyze and act on near misses
- Promote reporting and hazard awareness
