A blended rate is a weighted average of different rates or costs. This calculator helps you determine the overall rate when you have multiple components contributing to a final price or cost. This is commonly used in finance for portfolios of investments with different yields, or in logistics for averaging shipping costs across different carriers.
function calculateBlendedRate() {
var rate1 = parseFloat(document.getElementById("rate1").value);
var weight1 = parseFloat(document.getElementById("weight1").value);
var rate2 = parseFloat(document.getElementById("rate2").value);
var weight2 = parseFloat(document.getElementById("weight2").value);
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = ""; // Clear previous results
if (isNaN(rate1) || isNaN(weight1) || isNaN(rate2) || isNaN(weight2)) {
resultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
// Optional: Check if weights sum to approximately 1 (or 100%) for a true blended rate
// This is a common assumption but may not always be the case depending on the use case.
// For simplicity in this example, we'll proceed even if they don't sum to 1, as the formula still works.
var blendedRate = (rate1 * weight1) + (rate2 * weight2);
resultDiv.innerHTML = "The calculated blended rate is: " + (blendedRate * 100).toFixed(2) + "%";
}
.blended-rate-calculator {
font-family: sans-serif;
border: 1px solid #ccc;
padding: 20px;
border-radius: 8px;
max-width: 500px;
margin: 20px auto;
background-color: #f9f9f9;
}
.blended-rate-calculator h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.blended-rate-calculator p {
line-height: 1.6;
color: #555;
margin-bottom: 20px;
}
.calculator-inputs {
display: flex;
justify-content: space-between;
margin-bottom: 15px;
gap: 10px;
}
.input-group {
flex: 1;
display: flex;
flex-direction: column;
}
.input-group label {
margin-bottom: 5px;
font-weight: bold;
color: #444;
}
.input-group input[type="number"] {
padding: 8px;
border: 1px solid #ddd;
border-radius: 4px;
box-sizing: border-box; /* Include padding and border in the element's total width and height */
}
.blended-rate-calculator button {
display: block;
width: 100%;
padding: 10px 15px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
font-size: 16px;
cursor: pointer;
transition: background-color 0.3s ease;
}
.blended-rate-calculator button:hover {
background-color: #0056b3;
}
#result {
margin-top: 20px;
text-align: center;
font-size: 1.1em;
color: #333;
}
#result p {
margin-bottom: 0;
}