.turnover-calculator-container {
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
max-width: 600px;
margin: 20px auto;
padding: 25px;
background-color: #f9f9f9;
border: 1px solid #e0e0e0;
border-radius: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.turnover-input-group {
margin-bottom: 15px;
}
.turnover-input-group label {
display: block;
margin-bottom: 5px;
font-weight: 600;
color: #333;
}
.turnover-input-group input {
width: 100%;
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 16px;
box-sizing: border-box;
}
.turnover-btn {
width: 100%;
padding: 12px;
background-color: #2c3e50;
color: white;
border: none;
border-radius: 4px;
font-size: 16px;
cursor: pointer;
transition: background 0.3s;
}
.turnover-btn:hover {
background-color: #34495e;
}
#turnover-result {
margin-top: 20px;
padding: 15px;
background-color: #fff;
border: 1px solid #ddd;
border-radius: 4px;
display: none;
}
.result-value {
font-size: 24px;
font-weight: bold;
color: #27ae60;
}
.result-label {
font-size: 14px;
color: #666;
}
.calc-article {
max-width: 800px;
margin: 40px auto;
line-height: 1.6;
color: #333;
font-family: inherit;
}
.calc-article h2 {
color: #2c3e50;
border-bottom: 2px solid #eee;
padding-bottom: 10px;
}
.calc-article ul {
background: #fdfdfd;
padding: 20px 40px;
border-left: 4px solid #3498db;
}
function calculateTurnoverRate() {
var startCount = document.getElementById("employeesStart").value;
var endCount = document.getElementById("employeesEnd").value;
var separations = document.getElementById("totalSeparations").value;
var resultDiv = document.getElementById("turnover-result");
// Validation
if (startCount === "" || endCount === "" || separations === "") {
resultDiv.style.display = "block";
resultDiv.innerHTML = "Please enter values for all fields.";
return;
}
var start = parseFloat(startCount);
var end = parseFloat(endCount);
var seps = parseFloat(separations);
if (start < 0 || end < 0 || seps < 0) {
resultDiv.style.display = "block";
resultDiv.innerHTML = "Values cannot be negative.";
return;
}
// Calculate Average Number of Employees
var avgEmployees = (start + end) / 2;
if (avgEmployees === 0) {
resultDiv.style.display = "block";
resultDiv.innerHTML = "Average number of employees cannot be zero.";
return;
}
// Calculate Turnover Rate: (Separations / Avg Employees) * 100
var turnoverRate = (seps / avgEmployees) * 100;
// Formatting output
var htmlOutput = "
For every 100 employees, approximately " + Math.round(turnoverRate) + " left the company this year.";
resultDiv.style.display = "block";
resultDiv.innerHTML = htmlOutput;
}
How to Calculate Turnover Rate Per Year
Calculating your annual employee turnover rate is a critical metric for Human Resources departments and business owners. It measures the rate at which employees leave a workforce and are replaced. High turnover can be costly, affecting morale, productivity, and the bottom line, while low turnover often indicates a healthy company culture.
The Annual Turnover Formula
To determine your turnover rate per year, you need three specific data points: the number of employees at the beginning of the year, the number at the end of the year, and the total number of separations (employees who left) during that period.
The standard formula used by HR professionals is:
Turnover Rate = (Total Separations / Average Number of Employees) × 100
Where the Average Number of Employees is calculated as:
Average = (Employees at Start + Employees at End) / 2
Step-by-Step Calculation Example
Let's look at a realistic scenario to understand how the math works in practice:
- Start of Year Headcount: 150 employees
- End of Year Headcount: 170 employees
- Total Separations: 24 employees left during the year
Step 1: Calculate the Average Headcount
(150 + 170) / 2 = 160 Average Employees
Step 2: Divide Separations by Average
24 / 160 = 0.15
Step 3: Convert to Percentage
0.15 × 100 = 15% Turnover Rate
What Counts as a Separation?
When inputting data into the Annual Turnover Calculator, ensure you are including all types of separations to get an accurate picture:
- Voluntary Turnover: Employees resigning for better opportunities, retirement, or personal reasons.
- Involuntary Turnover: Terminations, layoffs, or discharge for cause.
Note: Generally, temporary absences (like maternity leave) or internal transfers are not counted as separations for company-wide turnover calculations.
Interpreting Your Results
What is a "good" turnover rate? It varies significantly by industry. Retail and hospitality often see rates above 50%, while professional services may target rates below 10%. If your calculator result is higher than your industry average, it may be time to investigate your retention strategies, compensation packages, and management training.