The OSHA DART (Days Away, Restricted, or Transferred) rate is a key metric used to track workplace safety. It measures the number of OSHA-recordable injuries and illnesses that result in days away from work, restricted work activity, or job transfer. This calculator will help you determine your DART rate.
function calculateDART() {
var recordableIncidents = parseFloat(document.getElementById("recordableIncidents").value);
var totalHoursWorked = parseFloat(document.getElementById("totalHoursWorked").value);
var resultDiv = document.getElementById("result");
if (isNaN(recordableIncidents) || isNaN(totalHoursWorked) || recordableIncidents < 0 || totalHoursWorked <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for all fields. Total hours worked must be greater than zero.";
return;
}
// OSHA DART Rate Formula: (Number of Recordable Incidents * 200,000) / Total Hours Worked
// The 200,000 represents the number of hours that 100 full-time employees would work in a year (100 employees * 40 hours/week * 50 weeks/year).
var dartRate = (recordableIncidents * 200000) / totalHoursWorked;
resultDiv.innerHTML = "Your OSHA DART Rate is: " + dartRate.toFixed(2) + " per 100 full-time employees.";
}
#dartRateOshaCalculator {
font-family: sans-serif;
border: 1px solid #ccc;
padding: 20px;
border-radius: 8px;
max-width: 500px;
margin: 20px auto;
background-color: #f9f9f9;
}
.form-group {
margin-bottom: 15px;
}
.form-group label {
display: block;
margin-bottom: 5px;
font-weight: bold;
}
.form-group input[type="number"] {
width: calc(100% – 12px);
padding: 8px;
border: 1px solid #ccc;
border-radius: 4px;
}
#dartRateOshaCalculator button {
background-color: #007bff;
color: white;
padding: 10px 15px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 1em;
}
#dartRateOshaCalculator button:hover {
background-color: #0056b3;
}
#result {
margin-top: 20px;
font-size: 1.1em;
text-align: center;
}