TRIR & DART incident-rate calculator

Enter your counts and hours. The formula and every number used are shown. No account is needed to calculate.

Your counts

Total hours worked (all employees, same period)

Period start

Period end

Total recordable cases: OSHA-recordable injuries and illnesses you counted (TRIR numerator)

DART cases: cases with days away, restricted work or job transfer (DART numerator)

Optional: days-away (DAFW) or lost-time (LTIR) rate from a separate count

Days-away or lost-time cases (separate count; never inferred)

Report it as

DAFW counts: Cases with one or more days away from work (OSHA 300 Log column H count).

Optional: record the EMR you were issued (never calculated)

EMR value

Issued by (source)

Issued on

Results

Enter hours and at least one case count.

Optional: compare with an official industry rate

Compare with a dated official benchmark

Next steps

Rates are one input. Review the documents behind them — OSHA 300/300A logs and your written safety programs — for gaps. Try a free document preview (no account)

Sentryline reports are informational decision-support — not a certification, legal opinion, or guarantee of compliance. Have qualified safety, compliance, legal, or industry professionals review final decisions.