Days Away Restricted or Transferred (DART) Rate Calculator
ANA›Life Services Authority›National Calculator Authority›Days Away Restricted or Transferred (DART) Rate Calculator
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Days Away Restricted or Transferred (DART) Rate Calculator
The DART rate measures the number of recordable workplace injuries and illnesses that resulted in days away from work, restricted work activity, or job transfers per 100 full-time equivalent (FTE) employees.
Number of Cases with Days Away from Work
Number of Cases with Restricted Work Activity
Number of Cases with Job Transfers
Total Hours Worked by All Employees
Calculate DART Rate ...
function dartCalc() { const resultEl = document.getElementById('dart-result');
const daysAway = parseFloat(document.getElementById('dart-days-away').value); const restricted = parseFloat(document.getElementById('dart-restricted').value); const transferred= parseFloat(document.getElementById('dart-transferred').value); const hoursWorked= parseFloat(document.getElementById('dart-hours').value);
// --- Validation --- if (isNaN(daysAway) || isNaN(restricted) || isNaN(transferred) || isNaN(hoursWorked)) { resultEl.innerHTML = '⚠ Please fill in all fields.'; return; } if (daysAway ⚠ Case counts cannot be negative.'; return; } if (!Number.isInteger(daysAway) || !Number.isInteger(restricted) || !Number.isInteger(transferred)) { resultEl.innerHTML = '⚠ Case counts must be whole numbers.'; return; } if (hoursWorked ⚠ Total hours worked must be greater than zero.'; return; }
// --- Formula --- // DART Rate = (Days Away + Restricted + Transferred) × 200,000 / Total Hours Worked const totalCases = daysAway + restricted + transferred; const dartRate = (totalCases * 200000) / hoursWorked;
// --- Benchmark context --- let benchmark = ''; if (dartRate ' + 'Total DART Cases: ' + totalCases + '' + 'Hours Worked: ' + hoursWorked.toLocaleString() + '' + benchmark; }
#### Formula
DART Rate = (Naway + Nrestricted + Ntransferred) × 200,000 ÷ H
- Naway — Number of OSHA recordable cases involving days away from work
- Nrestricted — Number of OSHA recordable cases involving restricted work activity
- Ntransferred — Number of OSHA recordable cases involving job transfers
- 200,000 — Base hours representing 100 full-time employees working 40 hrs/week × 50 weeks/year
- H — Total hours worked by all employees during the period
#### Assumptions & References
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