Safety Incident Rate Calculator
Calculate TRIR and DART, compare them to your industry average, and see what incidents really cost you.
Example scenario—not a forecast or verified benchmark. Enable JavaScript to edit inputs, view charts, save locally and export your analysis.
Example inputs
- Average number of employees
- 45
- Hours worked per employee per year
- 2,080
- Or enter total hours worked (optional)
- 0
- OSHA recordable incidents (12 months)
- 2
- DART cases (days away, restricted, or transferred)
- 1
- Total days away or restricted
- 20
- Your industry's average TRIR
- 2.5
- Your industry's average DART rate
- 1.4
- Your target TRIR (often a customer prequalification limit)
- 2
- Average direct cost per recordable
- 40,000
- Indirect cost multiplier
- 1.1
- Net profit margin
- 8
Example results
TRIR 4.27 and DART 2.14 vs. industry 2.5 / 1.4 (above average); incidents cost about $168K, equal to $2.1M in sales.
- TRIR
- 4.3
- DART rate
- 2.1
- TRIR vs. industry average
- 171%
- Total incident cost (direct + indirect)
- $168,000
- Sales needed to cover incident cost
- $2,100,000
- Severity rate (lost/restricted days per 200K hrs)
- 42.7
- Hours worked
- 93,600
- Savings if at target TRIR
- $168,000
What stands out
TRIR of 4.27 is 71% above your industry average of 2.5
Above-average rates tend to raise your experience modification rate (EMR) and workers' comp premiums, and can disqualify you from bids.
Over your 2 target by 2 incidents
At 93,600 hours, you can have at most 0 recordables to stay at or below target.
DART rate 2.14 vs 1.4 industry
50% of your recordables caused lost or restricted time, a sign of more severe injuries.
Incidents cost about $168K this year
At a 8% margin you need $2.1M of extra sales just to pay for them.
Next actions
- Cut 2 recordables to reach your 2 target, worth about $168K a year: root-cause every recordable within 48 hours and track near misses weekly.
- Start a written return-to-work / light-duty program; it turns days-away cases into restricted duty and lowers claim costs.
- Ask your carrier for 3 years of loss runs and your EMR worksheet; tie supervisor bonuses to leading indicators (inspections, near misses), not just zero injuries.
Model assumptions & limitations
- TRIR = recordables x 200,000 / hours worked; DART = DART cases x 200,000 / hours worked (OSHA formulas, 200,000 = 100 full-time workers for a year).
- Industry averages (2.5 TRIR / 1.4 DART) are your inputs; the defaults are placeholders. Verify against BLS data for your NAICS code.
- Cost per recordable ($40,000) and indirect multiplier (1.1x) are planning estimates; your carrier's loss runs give real figures.
- The target DART on the chart is scaled from your target TRIR using the industry DART-to-TRIR ratio.