OSHA recordkeeping rate calculator
Calculate the standardized rate of recordable cases involving days away from work using the OSHA 200,000-hour incidence rate base.
Enter the case count and employee hours to calculate a standardized rate per 100 full-time-equivalent employees.
Standard formula
Days Away Case Rate equals cases involving days away from work multiplied by 200,000, divided by total employee hours worked during the same period.
Standardization
The 200,000-hour base represents the approximate annual hours worked by 100 full-time-equivalent employees working 40 hours per week for 50 weeks.
Standardization supports comparison across reporting periods or establishments with different workforce-hour totals.
The numerator is the number of qualifying recordable cases involving days away from work. It is not the total number of calendar days employees remained away.
Confirm the case classification using verified OSHA 300 Log information before calculating the rate.
Days Away Case Rate includes only cases involving days away from work. DART uses a broader numerator that also includes cases involving restricted work or job transfer.
Both measures use total employee hours and the standardized 200,000-hour base.
This calculator does not determine whether an injury or illness is work-related, recordable, or correctly classified. It also does not establish OSHA compliance, citation exposure, insurance liability, or overall workplace safety.
Multiply the number of cases involving days away from work by 200,000, then divide by total employee hours worked during the same reporting period.
OSHA guidance has described the Days Away from Work Injury and Illness case rate, or DAFWII, as the same measure referred to as the Days Away Case Rate or DACR.
Use recordable cases involving days away from work. Do not use the number of calendar days lost, and do not add cases involving only restricted work or job transfer.
The Days Away Case Rate uses only cases involving days away from work. DART also includes cases involving restricted work or transfer to another job.
No. The rate is a lagging recordkeeping measure. It does not independently establish compliance, hazard control effectiveness, or overall workplace safety.
Calculate the broader rate covering days away, restricted work, and job-transfer cases.
Calculate the total recordable incident rate using all OSHA-recordable cases.
Normalize entered days away, restriction, or transfer against employee hours.
Primary references
Review these primary OSHA resources alongside current state-plan, local, project, manufacturer, employer, and qualified-professional requirements that apply to the work.
Official archived OSHA directive defining the DAFWII or Days Away Case Rate formula, its 200,000-hour base, numerator, and worked example.
Official OSHA recordkeeping rule covering cases involving days away from work, restricted work, and job transfer.
External references are provided for research and verification. Their inclusion does not make a generated document compliant, approved, certified, or complete for a particular workplace.