Fixed Deposit Returns Calculator
Annually
Semi-Annually
Quarterly
Monthly
Your FD Returns:
Total Maturity Amount: ₹0.00
Total Interest Earned: ₹0.00
function calculateFdReturns() {
var principalAmount = parseFloat(document.getElementById(“principalAmount”).value);
var annualRate = parseFloat(document.getElementById(“annualRate”).value);
var tenureYears = parseFloat(document.getElementById(“tenureYears”).value);
var compoundingFrequency = parseInt(document.getElementById(“compoundingFrequency”).value);
if (isNaN(principalAmount) || principalAmount <= 0) {
alert("Please enter a valid initial deposit amount.");
return;
}
if (isNaN(annualRate) || annualRate <= 0) {
alert("Please enter a valid annual interest rate.");
return;
}
if (isNaN(tenureYears) || tenureYears <= 0) {
alert("Please enter a valid investment tenure in years.");
return;
}
var rateDecimal = annualRate / 100;
var maturityAmount = principalAmount * Math.pow((1 + rateDecimal / compoundingFrequency), (compoundingFrequency * tenureYears));
var totalInterest = maturityAmount – principalAmount;
document.getElementById("maturityAmount").innerText = "₹" + maturityAmount.toFixed(2);
document.getElementById("totalInterest").innerText = "₹" + totalInterest.toFixed(2);
}
// Initial calculation on page load for default values
window.onload = calculateFdReturns;
Understanding Fixed Deposit (FD) Returns
A Fixed Deposit (FD) is a popular investment option offered by banks and financial institutions in India, allowing you to deposit a lump sum of money for a fixed period at a predetermined interest rate. It’s considered a safe and reliable investment, especially for those looking for guaranteed returns without exposure to market volatility.
How FD Returns Are Calculated
The returns on a Fixed Deposit are primarily calculated using the compound interest formula. This means that the interest earned in each period is added to the principal, and the next period’s interest is calculated on this new, larger principal. This compounding effect allows your money to grow faster over time.
The general formula for compound interest is:
A = P * (1 + r/n)^(nt)
Where:
- A = Maturity Amount (the total amount you receive at the end of the tenure)
- P = Principal Amount (your initial deposit)
- r = Annual Interest Rate (as a decimal, e.g., 7% becomes 0.07)
- n = Number of times interest is compounded per year (e.g., 1 for annually, 2 for semi-annually, 4 for quarterly, 12 for monthly)
- t = Investment Tenure (in years)
The total interest earned is simply the Maturity Amount minus the Principal Amount (Total Interest = A - P).
Factors Affecting Your FD Returns
- Initial Deposit: A larger principal amount will naturally yield higher returns, assuming all other factors remain constant.
- Annual Interest Rate: This is the rate offered by the bank. Higher rates lead to higher returns. Rates can vary based on the bank, tenure, and special offers (e.g., for senior citizens).
- Investment Tenure: The longer you keep your money invested, the more time it has to compound, leading to greater returns.
- Compounding Frequency: This is a crucial factor. The more frequently interest is compounded (e.g., monthly vs. annually), the higher your effective return will be, as interest starts earning interest sooner.
Using the FD Returns Calculator
Our Fixed Deposit Returns Calculator simplifies the complex calculations for you. Here’s how to use it:
- Initial Deposit: Enter the amount you plan to invest in the FD.
- Annual Interest Rate (%): Input the annual interest rate offered by your bank.
- Investment Tenure (Years): Specify the duration for which you intend to keep your money invested.
- Compounding Frequency: Select how often the interest is compounded (Annually, Semi-Annually, Quarterly, or Monthly).
Once you click “Calculate Returns,” the calculator will instantly display your estimated Total Maturity Amount and the Total Interest Earned over the investment period.
Example Calculation:
Let’s say you invest ₹1,00,000 in an FD for 5 years at an annual interest rate of 7%, compounded quarterly.
- Principal (P) = ₹1,00,000
- Annual Rate (r) = 7% = 0.07
- Tenure (t) = 5 years
- Compounding Frequency (n) = 4 (quarterly)
Using the formula:
A = 1,00,000 * (1 + 0.07/4)^(4*5)
A = 1,00,000 * (1 + 0.0175)^(20)
A = 1,00,000 * (1.0175)^20
A ≈ 1,00,000 * 1.414778
A ≈ ₹1,41,477.80
Total Interest Earned = ₹1,41,477.80 - ₹1,00,000 = ₹41,477.80
This calculator helps you quickly visualize how different inputs impact your potential earnings, aiding in better financial planning.