Fixed Deposit (FD) Calculator

Calculate the maturity amount and interest earned on your FD investments.

Investment Details

Invested Amount

₹0

Est. Returns

₹0

Maturity Value

₹0

Yearly Investment Breakdown

Year Opening Balance Interest Earned Closing Balance

The Ultimate Guide to the Fixed Deposit (FD) Calculator

This FD calculator shows the maturity value and interest earned on a cumulative fixed deposit: enter the amount, annual interest rate and tenure in whole years, choose the compounding frequency (quarterly by default), and it applies A = P × (1 + r/n)^(n×t). Results are before tax.

Fixed Deposits (FDs) are one of the most popular investment instruments in India because the interest rate is fixed for the tenure, so the return is known in advance. Unlike market-linked investments, the value does not move with the market, which suits risk-averse investors and fixed-date goals. This guide explains how FDs work, the factors affecting your returns, and how to use the fixed deposit calculator.

How to Use Our Advanced FD Calculator

Follow these steps:

  1. Enter Total Investment: Input the principal amount you plan to invest in the Fixed Deposit.
  2. Enter Annual Interest Rate: Input the yearly interest rate offered by your bank.
  3. Select Time Period: Enter the tenure of your FD in whole years (the calculator does not handle months or days).
  4. Choose Compounding Frequency: This is a crucial setting. Select how often the bank compounds the interest (e.g., Monthly, Quarterly, Annually). Quarterly is the most common for Indian banks.
  5. Senior Citizen Option: If the investor is a senior citizen, check the box. The calculator adds 0.5 percentage points to the rate you entered. If your bank's senior rate is different, leave the box unchecked and enter the senior rate directly.
  6. Analyze Your Results Instantly: The results update automatically, showing you:
    • A clear breakdown of your Invested Amount, the Estimated Returns (total interest), and the final Maturity Value.
    • A doughnut chart that visually represents the proportion of your principal versus the interest earned.
    • A yearly breakdown table detailing the growth of your investment year by year, showing the opening balance, interest earned, and closing balance for each year.

What is a Fixed Deposit (FD)?

A Fixed Deposit is a financial instrument provided by banks and NBFCs where you can deposit a lump sum of money for a fixed period at a predetermined interest rate. At the end of the tenure, you receive the principal amount along with the accumulated interest. Bank FDs are considered one of the safest investment options: in India, deposits with a bank are insured by the DICGC up to ₹5 lakh per depositor per bank (principal and interest combined). Company and NBFC deposits are not covered by this insurance.

The Core Formula: How to Calculate FD Interest

A cumulative FD grows through compounding. Our FD returns calculator uses the standard compound interest formula:

A = P * (1 + r/n)^(n*t)

Where:

The total interest earned is then calculated as: Total Interest = A - P.

How Compounding Frequency Affects Your Returns

The more frequently interest is compounded, the faster your money grows. Let's see an example for a ₹1,00,000 investment for 1 year at 8%:

As you can see, higher compounding frequency leads to higher returns. Most banks in India compound interest on a quarterly basis.

Key Factors to Consider Before Investing in an FD

Frequently Asked Questions (FAQ)

Is an FD a good investment?

FDs suit risk-averse investors seeking capital protection and a fixed, known return. They work well for short-to-medium term goals where you cannot afford to risk your principal. However, for long-term wealth creation, equity-based instruments like mutual funds may offer higher, albeit market-linked, returns.

What is the difference between cumulative and non-cumulative FD?

In a cumulative FD, the interest is reinvested and paid out at maturity along with the principal (this is what our calculator computes). In a non-cumulative FD, the interest is paid out at regular intervals (monthly, quarterly, etc.) and does not get compounded.

Is this online FD calculator free?

Yes, this tool is free to use, with no limits. It runs in your browser.

Conclusion

Our FD Calculator shows how the interest rate, tenure and compounding frequency change the maturity value of a cumulative FD. Use it to compare FD offers from different banks; the bank's own figures may differ slightly because of rounding, day counts and tax deducted.