OSHA Recordable Rate Calculator

The total recordable incident rate, or TRIR, is how many recordable injuries and illnesses you had for every 100 full-time workers over a year. Putting your count on that common base is what lets a crew of twelve and a plant of four hundred compare their numbers, and it is the figure general contractors, insurers and prequalification forms ask for. Everything this calculator needs is on your OSHA Form 300A summary. Total recordable cases is the sum of columns G (deaths), H (cases with days away from work), I (cases with job transfer or restriction) and J (other recordable cases). The DART rate, short for Days Away, Restricted or Transferred, counts only the column H and column I cases. The days-away case rate counts column H alone. All three use OSHA's formula: cases x 200,000 / hours worked. The 200,000 is the hours 100 employees would work at 40 hours a week for 50 weeks, so the answer reads as cases per 100 full-time workers per year. The hours are hours actually worked.

BLS's guidance for computing an incidence rate says the figure should not include non-work time, even though paid, such as vacation, sick leave and holidays. If you only have headcounts, OSHA's optional worksheet on the Form 300A gives a way to estimate the total. The full-time-equivalent figure divides your hours by 2,000, the length of a full-time year on OSHA's base, so it is a count of 2,000-hour years rather than your headcount. To see where you stand, the result sets your TRIR beside the Bureau of Labor Statistics rate for all of private industry in 2024, 2.3 cases per 100 full-time workers. That figure covers every private industry together and counts nonfatal cases only, so a year with a death in column G is counting a case that BLS's number leaves out. Industry-specific rates differ a lot from the all-industry average, so use this as a first check, not a verdict. Small employers should also expect rates to swing: the table under the calculator shows that a single case moves a ten-person shop's TRIR by 10.00, but a 500-person workforce's by only 0.20. Each rate is worked out exactly from whole numbers and rounded half up once, to two decimals. BLS prints its own rates to one decimal, so round this result to one place before you set it next to a published BLS figure.