Rate of Return Calculator
This calculator helps you determine the rate of return (RoR) on an investment. The rate of return is a performance measure used to evaluate the efficiency of an investment or compare the efficiency of a number of different investments. It quantizes the profit or loss generated by an investment over a specific period of time, expressed as a percentage of the initial cost of that investment.
function calculateRoR() {
var initialInvestment = parseFloat(document.getElementById("initialInvestment").value);
var finalValue = parseFloat(document.getElementById("finalValue").value);
var investmentDuration = parseFloat(document.getElementById("investmentDuration").value);
var resultDiv = document.getElementById("result");
if (isNaN(initialInvestment) || isNaN(finalValue) || isNaN(investmentDuration) || initialInvestment <= 0 || investmentDuration <= 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for all fields.";
return;
}
var profitOrLoss = finalValue – initialInvestment;
var rateOfReturn = (profitOrLoss / initialInvestment) * 100;
var annualizedRoR = Math.pow((finalValue / initialInvestment), (1 / investmentDuration)) – 1;
annualizedRoR = annualizedRoR * 100;
var displayHtml = "
Results:
";
displayHtml += "
Profit/Loss: " + profitOrLoss.toFixed(2) + "";
displayHtml += "
Total Rate of Return: " + rateOfReturn.toFixed(2) + "%";
displayHtml += "
Annualized Rate of Return: " + annualizedRoR.toFixed(2) + "%";
resultDiv.innerHTML = displayHtml;
}
.calculator-container {
font-family: sans-serif;
max-width: 600px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.calculator-container h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.calculator-inputs {
display: grid;
grid-template-columns: 1fr;
gap: 15px;
}
.input-group {
display: flex;
flex-direction: column;
}
.input-group label {
margin-bottom: 5px;
font-weight: bold;
color: #555;
}
.input-group input {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1rem;
}
.calculator-inputs button {
padding: 12px 20px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 1.1rem;
transition: background-color 0.3s ease;
}
.calculator-inputs button:hover {
background-color: #0056b3;
}
.calculator-results {
margin-top: 25px;
padding: 15px;
background-color: #f9f9f9;
border: 1px solid #eee;
border-radius: 4px;
}
.calculator-results h3 {
margin-top: 0;
color: #333;
}
.calculator-results p {
margin-bottom: 10px;
color: #444;
}
.calculator-results p strong {
color: #007bff;
}