FD Calculator

How to use the FD Calculator

1. Enter the amount you plan to deposit.
2. Enter the annual interest rate your bank is offering.
3. Set the tenure, or pick a preset.
4. Choose the compounding frequency your bank uses (quarterly is most common in India).
5. See the maturity value and interest earned instantly.

What is an FD calculator?

An FD (Fixed Deposit) calculator estimates what a bank fixed deposit will be worth when it matures, based on the amount deposited, the interest rate offered, the tenure, and how often the bank compounds interest. It helps you compare offers before locking money away.

How FD interest is calculated

Fixed deposits use the same compound interest formula as any other compounding investment. Indian banks most commonly compound FD interest quarterly, though some offer monthly or annual options — this calculator lets you choose.

Formula

A = P (1 + r/n)^(n×t)

Where P is your deposit, r is the annual interest rate, n is the compounding frequency per year, and t is the tenure in years — the same formula used by the Compound Interest Calculator, with FD-typical defaults.

Worked example

A ₹1,00,000 deposit at 7% annual interest, compounded quarterly for 5 years, matures to roughly ₹1,41,000 — about ₹41,000 in interest.

Understanding your result

• Maturity value is the total amount you’ll receive when the FD matures.
• Interest earned is the growth on top of your original deposit.
• The year-wise table shows how the balance builds year by year.

Factors that affect the result

• Interest rate varies by bank, deposit amount and tenure.
• Compounding frequency changes the maturity value slightly for the same nominal rate.
• Depositor category — senior citizens are often offered a higher rate (not modelled here; adjust the rate manually to check).

Common uses

Savers use this calculator to compare FD offers across banks and tenures, check whether a longer lock-in genuinely earns meaningfully more, or estimate returns before renewing a maturing FD.

Important notes & limitations

Actual FD rates depend on your bank, deposit amount, tenure and depositor category. Tax is deducted at source (TDS) on interest above the exempt threshold and is not factored into this estimate, and premature withdrawal penalties are not modelled here.