FD Calculator

An FD calculator tells you exactly how much your fixed deposit will be worth when it matures. Enter your deposit amount, interest rate and tenure, and you get the maturity value and the total interest you will earn. For a product where the rate is locked in on day one, that certainty is the whole point, and the calculator lets you compare tenures and banks before you commit your money.

This tool is for retirees living on interest income, salaried employees parking a bonus safely, parents saving for a near term goal, and anyone who wants guaranteed returns without market risk. Fixed deposits remain the most widely held investment in India, and for most households they are the benchmark against which every other investment is measured.

What Is a Fixed Deposit?

A fixed deposit, or FD, is money placed with a bank for a set period, from 7 days to 10 years, at an interest rate agreed on the day the deposit is made. The rate does not change during the term, whatever happens to market rates afterwards. At maturity, the bank returns your principal along with the interest earned.

FDs are simple, and that simplicity is their strength. There is no market risk, no daily price movement, and no complicated structure. You know on day one what you will receive at maturity, provided you hold the deposit for the full term. Banks in India offer FDs to all resident individuals, and senior citizens aged 60 and above typically earn an extra 0.50% per annum over the general rate.

Deposits with banks are covered by the Deposit Insurance and Credit Guarantee Corporation (DICGC) up to Rs. 5 lakh per depositor per bank, including principal and interest. This insurance is one reason FDs feel safe even at smaller banks, though it is wise to keep total deposits within the insured limit at any single bank if safety is your top priority.

How Is FD Interest Calculated?

Banks quote FD rates as an annual figure, but interest is usually compounded every quarter. That means the interest earned in one quarter itself starts earning interest in the next quarter, so the effective return is slightly higher than the quoted rate. The formula for a quarterly compounded FD is:

Maturity Value = P x (1 + r/4)^(4 x t)

Here is what each variable means:

• P is the principal, the amount you deposit.
• r is the annual interest rate divided by 100. For a 6.25% rate, r is 0.0625.
• t is the tenure in years.
• 4 is the number of compounding periods per year, since interest compounds quarterly.

Some banks compound monthly or half yearly instead of quarterly, and a few offer simple interest FDs where interest does not compound at all. Quarterly compounding is the most common for Indian banks, and the calculator on this page uses quarterly compounding. If your bank compounds differently, the maturity value will differ slightly, so confirm the compounding frequency in your deposit receipt.

Interest on FDs is taxed at your income tax slab rate, and banks deduct TDS when the interest crosses Rs. 50,000 in a financial year (Rs. 1,00,000 for senior citizens under current rules). If your total income is below the taxable limit, you can submit Form 15G or 15H to avoid TDS. TDS is not an extra tax; it is adjusted against your final tax liability when you file your return.

Worked Example: Rs. 5 Lakh for One Year at 6.25%

Let us work through a real example. Suppose you deposit Rs. 5,00,000 for one year at 6.25% per annum, compounded quarterly.

1. Principal (P): Rs. 5,00,000
2. Annual rate (r): 6.25 divided by 100 = 0.0625
3. Quarterly rate: 0.0625 divided by 4 = 0.015625
4. Compounding periods: 4 quarters in one year
5. Maturity value: 5,00,000 x (1.015625)^4 = Rs. 5,31,990
6. Interest earned: 5,31,990 minus 5,00,000 = Rs. 31,990

Notice that simple interest for one year would have given only Rs. 31,250. Quarterly compounding adds Rs. 740 extra, because each quarter's interest starts earning interest in the following quarters. The effect is small over one year but grows substantially over longer tenures, as the next example shows.

Now take Rs. 1,00,000 deposited for 5 years at 7% per annum, compounded quarterly. The maturity value is Rs. 1,41,478, so the interest earned is Rs. 41,478. That is more than 40% growth on the principal, purely from a fixed, guaranteed rate, which is why longer tenures suit money you do not need soon.

How to Use This FD Calculator

1. Enter the amount you plan to deposit, for example Rs. 1,00,000.
2. Enter the annual interest rate offered by your bank, for example 7%.
3. Enter the tenure in years or months, for example 5 years.
4. Click calculate to see your maturity value and total interest earned.
5. Compare different tenures and rates to find the combination that fits your goal.

A useful comparison is to run the same deposit for 1 year, 3 years and 5 years. You will see how the interest grows faster than linearly with tenure, because compounding has more quarters to work with. That comparison often changes which tenure people choose.

Types of Fixed Deposits

Cumulative FD

Interest is reinvested and paid together with the principal at maturity. This is the option that benefits most from compounding, and it suits goals where you do not need regular income from the deposit.

Non-Cumulative FD

Interest is paid out monthly, quarterly, half yearly or yearly, as you choose. The principal stays intact and you receive a regular income stream. This is the preferred option for retirees who live on interest income, though the total return is lower than a cumulative FD because interest paid out does not compound.

Senior Citizen FD

Depositors aged 60 and above earn an additional 0.50% per annum at most banks, and some banks offer an extra 0.25% to 0.50% more under special schemes for super senior citizens aged 80 and above. In October 2026, senior citizen FD rates at large public sector banks were around 7.05% to 7.45% on the best slabs, while small finance banks offered up to 8.50% on select tenures.

Tax Saver FD

A 5 year tax saver FD qualifies for a deduction of up to Rs. 1.5 lakh per year under Section 80C in the old tax regime. The trade-off is a mandatory 5 year lock-in with no premature withdrawal, and the interest earned is still taxable.

Flexi FD and Sweep-In FD

These link your savings account to an FD. Surplus money above a threshold automatically moves into an FD and earns higher interest, while still being available if your account balance falls. They suit people who want FD returns without locking money away completely.

Factors That Affect Your FD Returns

• Interest rate: The single biggest factor. Rates follow the RBI repo rate with a lag, so when the repo rate rises, FD rates usually follow over the following months.
• Tenure: Longer tenures usually carry higher rates and always benefit more from compounding. Special tenures like 444 days or 555 days often carry a bank's best rate.
• Bank type: Small finance banks and some private banks pay more than large public sector banks, because they need deposits more urgently. The trade-off is that you should check the DICGC insurance limit.
• Senior citizen status: The extra 0.50% for seniors adds up meaningfully over a 5 year deposit.
• Compounding frequency: Quarterly compounding beats half yearly compounding, and monthly beats quarterly, for the same quoted rate.
• Tax slab: Since FD interest is fully taxable, your post tax return depends on your slab. For someone in a higher slab, a tax free option like PPF may beat an FD even at a lower headline rate. Our PPF calculator lets you compare the two directly.
• Inflation: If inflation runs above your FD rate, your money loses purchasing power even though the nominal value grows. This is the main long term weakness of FDs.

Benefits of Fixed Deposits

First, guaranteed returns. The rate is fixed at booking, so you know exactly what you will receive. Second, safety. Bank deposits are DICGC insured up to Rs. 5 lakh per depositor per bank, and large banks carry very low default risk. Third, flexibility of tenure, from 7 days to 10 years, so you can match the deposit to your goal. Fourth, regular income through the non-cumulative option, which retirees rely on. Fifth, easy liquidity in emergencies: premature withdrawal is allowed with a small penalty, usually 0.50% to 1% lower interest, so your money is not truly locked away. Sixth, FDs work well as an emergency fund base, and you can compare that role with a RD calculator plan if you prefer to build the corpus monthly instead of depositing a lump sum at once.

Common Mistakes to Avoid

• Chasing the highest rate blindly: A small finance bank offering 8.50% is attractive, but check the DICGC limit and keep deposits within Rs. 5 lakh per bank if safety matters to you.
• Ignoring tax: A 7% FD for someone in the 30% slab gives only about 4.9% after tax. Compare post tax returns before choosing between an FD, PPF and debt funds.
• Putting all money in one FD: Laddering, which means splitting money across FDs maturing in different years, gives you regular liquidity and lets you reinvest at higher rates if rates rise.
• Forgetting about inflation: For goals more than 5 years away, an FD alone may not preserve purchasing power. Pair it with growth options like a SIP calculator plan for long term goals.
• Breaking FDs unnecessarily: Premature withdrawal costs you interest. Keep a separate liquid buffer so you do not have to break a long term FD for a small expense.
• Not checking the compounding frequency: Two banks quoting the same rate can give different maturity values if one compounds quarterly and the other half yearly.

Limitations of an FD Calculator

An FD calculator assumes quarterly compounding and a constant rate for the full tenure, which matches most standard bank FDs but not all. It does not deduct TDS or income tax, so the maturity value shown is pre tax. It also does not model premature withdrawal penalties, sweep-in mechanics, or special scheme conditions. For tax saver FDs, the lock-in and tax treatment differ from regular FDs. Confirm the exact rate, compounding frequency and penalty terms in your bank's deposit receipt before relying on the figure.

FD Comparison: What Different Deposits Grow Into

These figures assume quarterly compounding at the stated rate.

Deposit	Rate	Tenure	Maturity Value	Interest Earned
Rs. 5,00,000	6.25%	1 year	Rs. 5,31,990	Rs. 31,990
Rs. 2,00,000	6.50%	2 years	Rs. 2,27,528	Rs. 27,528
Rs. 1,00,000	7.00%	3 years	Rs. 1,23,144	Rs. 23,144
Rs. 1,00,000	7.00%	5 years	Rs. 1,41,478	Rs. 41,478

Compare the last two rows. The same Rs. 1,00,000 at the same 7% rate earns Rs. 23,144 in 3 years but Rs. 41,478 in 5 years. The extra two years add Rs. 18,334, which is nearly as much as the first three years combined. That is compounding accelerating over time, and it is why tenure choice matters as much as rate choice.

Frequently Asked Questions

What is the current FD interest rate in India?

FD rates vary by bank and tenure and change with the RBI repo rate. In late 2026, large banks paid around 6.25% to 6.75% on one year deposits for general depositors, with an extra 0.50% for senior citizens. Small finance banks offered up to 8.50% for seniors on select tenures. Always check your bank's current rate card before booking.

How is FD maturity value calculated?

For a quarterly compounded FD, maturity value = P x (1 + r/4)^(4 x t), where P is the principal, r is the annual rate divided by 100, and t is the tenure in years. Interest earned is the maturity value minus the principal. Our percentage calculator can help you work out the effective annual yield if you want to compare FDs with different compounding frequencies.

Is FD interest taxable?

Yes. FD interest is added to your income and taxed at your slab rate. Banks deduct TDS when interest crosses Rs. 50,000 in a financial year, or Rs. 1,00,000 for senior citizens under current rules. If your total income is below the taxable limit, submit Form 15G or 15H to avoid TDS.

What happens if I break an FD early?

Premature withdrawal is allowed at most banks, but you usually earn interest at 0.50% to 1% below the booked rate or the rate applicable for the period actually held, whichever is lower. Some banks also charge a small penalty. Check the penalty clause before booking a long tenure.

Are FDs safe?

Bank FDs are among the safest investments in India. Deposits up to Rs. 5 lakh per depositor per bank, including principal and interest, are insured by DICGC. Within that limit, your money is protected even if the bank fails. For larger amounts, spread deposits across banks to stay within the insurance limit at each one.

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

In a cumulative FD, interest is reinvested and paid with the principal at maturity, giving the highest total return. In a non-cumulative FD, interest is paid out regularly as income, which suits retirees but gives a lower total return because the interest does not compound.

Can senior citizens get higher FD rates?

Yes. Most banks offer an additional 0.50% per annum to depositors aged 60 and above, and some offer more under special schemes or for super senior citizens aged 80 and above. The extra rate applies at booking and stays fixed for the tenure.

Should I choose an FD or a recurring deposit?

Choose an FD when you have a lump sum ready to invest. Choose a recurring deposit when you want to build a corpus from monthly income. Both are bank products with similar safety. Use our RD calculator to compare a monthly plan against a one time FD for your specific amounts.

Conclusion

A fixed deposit remains the simplest way to earn a guaranteed return on money you cannot afford to risk. The rate is locked, the maturity value is known on day one, and the deposit is insured up to Rs. 5 lakh per bank. Use the calculator above to compare tenures, rates and banks before you book, and remember that tenure and compounding frequency matter almost as much as the headline rate. For money you need soon or cannot risk, an FD is hard to beat. For long term goals, pair it with growth investments so inflation does not quietly eat your returns.