FD Calculator

Investment

Know exactly what your fixed deposit will be worth at maturity before you lock it in.

Free · No sign-up · Private4 min readUpdated 26 July 2026

In short: The FD Calculator is a free online tool that lets you calculate the maturity value and interest earned on a fixed deposit — instantly, with charts, a worked example and the exact formula.

Describe it and let AI fill the form

Your inputs

Results

Invested amount

₹1,00,000

Interest earned

₹41,478

Maturity value

₹1,41,478

AI insights

You put in ₹1,00,000 and it grows to ₹1,41,478 — about 1.4× your money, with ₹41,478 earned on top.
Roughly 29% of the final value is growth, not your own contributions — the compounding is doing the heavy lifting.
Staying invested longer, or stepping the amount up each year, tilts this even further in your favour.

Explain my result with AI

A plain-English read of your numbers.

Deposit growth

Maturity value each year with quarterly compounding.

Year-wise maturity

Year-wise maturity
Year	Interest earned	Maturity value
1	₹7,186	₹1,07,186
2	₹14,888	₹1,14,888
3	₹23,144	₹1,23,144
4	₹31,993	₹1,31,993
5	₹41,478	₹1,41,478

Interest compounded quarterly.

Formula

A = P × (1 + r/n)^(n·t)

A: Maturity amount
P: Principal deposit
r: Annual interest rate (decimal)
n: Compounding frequency per year (4 = quarterly)
t: Tenure in years

Step-by-step calculation

Worked with the default values.

1
Quarterly rate
7% ÷ 4
= 1.75%
2
Quarters (n)
5 × 4
= 20
3
Maturity
A = P × (1 + r/4)^(4t)
= ₹1,41,478

How it works

Interest is compounded quarterly on most Indian FDs, so you earn interest on interest.
Longer tenures and higher rates both increase the maturity value.
Interest earned is taxable as per your income slab; TDS may apply above thresholds.

Examples

₹1,00,000 at 7% for 5 years

Matures to about ₹1,41,478 — roughly ₹41,478 interest.

Understanding the FD Calculator

How a fixed deposit grows

A fixed deposit locks a lump sum with a bank for a chosen tenure at a rate fixed on the day you book it. Most Indian banks compound FD interest quarterly, meaning every three months the interest earned is added to your balance and the next quarter earns interest on the larger amount. The calculator uses the standard compound-interest formula with quarterly compounding to show your exact maturity value.

Because the rate is locked, an FD gives complete certainty about the final amount — a key reason it remains one of India's most popular savings instruments.

Why people choose an FD

The appeal is safety and predictability. Unlike equity or mutual funds, an FD's return does not depend on markets, and the principal is protected. Deposits are insured by the DICGC up to ₹5 lakh per depositor per bank. This makes FDs ideal for emergency funds, short-term goals, or the stable portion of a retiree's portfolio.

What affects your maturity value

Deposit amount — the principal you lock in.
Interest rate — varies by bank and tenure; senior citizens get a bonus.
Tenure — longer terms usually carry higher rates and allow more compounding.
Compounding frequency — quarterly is standard and slightly beats annual compounding.

Remember that the maturity figure is pre-tax. Interest is added to your income and taxed at your slab rate, and banks deduct 10% TDS once interest crosses ₹40,000 a year (₹50,000 for seniors).

Common mistakes to avoid

Many savers park all their money in a single long FD, then break it early and lose interest to penalties. A better approach is an FD ladder — several deposits maturing at different times — which keeps money accessible without sacrificing rates. Another mistake is ignoring the tax drag: after slab-rate tax, an FD's real return may barely beat inflation, so relying on FDs alone for long-term wealth rarely works. Finally, savers with income below the taxable limit often forget to file Form 15G or 15H, letting the bank deduct TDS unnecessarily.

Pros

Guaranteed, fixed returns unaffected by market movements.
Capital is protected and deposits are DICGC-insured up to ₹5 lakh per bank.
Flexible tenures from 7 days to 10 years to match any goal.
Senior citizens earn an extra 0.25–0.75% over standard rates.
Easy to pledge as collateral for a loan or overdraft without breaking the deposit.

Cons

Returns often barely beat inflation, so real growth is modest.
Interest is fully taxable at your slab rate, reducing post-tax yield.
Premature withdrawal attracts a penalty and a lower effective rate.
Locks your money in — the rate does not rise if market rates go up mid-tenure.

Tips

1Use an FD ladder — split money across staggered maturities — for liquidity and rate flexibility.
2Compare small finance and private banks, which often offer higher FD rates than large banks.
3Submit Form 15G/15H if your income is below the taxable limit to stop TDS deduction.
4Pick a cumulative FD to benefit from compounding if you do not need periodic income.
5Keep single-bank deposits under ₹5 lakh, or split across banks, to stay fully DICGC-insured.

Frequently asked questions

Everything you need to know about the FD Calculator.

How is FD interest compounded?

Most banks compound FD interest quarterly. Each quarter interest is added to the balance, and the next quarter earns interest on the higher amount.

Is FD interest taxable?

Yes. FD interest is added to your income and taxed at your slab rate. Banks deduct TDS once interest crosses the annual threshold.

What is the TDS threshold on FD interest?

Banks deduct 10% TDS once your FD interest crosses ₹40,000 in a financial year (₹50,000 for senior citizens). If your total income is below the taxable limit, submit Form 15G or 15H to avoid TDS.

What is a cumulative versus non-cumulative FD?

A cumulative FD reinvests interest and pays the full amount at maturity, giving you the compounding shown here. A non-cumulative FD pays interest out monthly, quarterly or annually, which suits people needing regular income but forgoes compounding.

Do senior citizens get a higher FD rate?

Yes. Most banks offer senior citizens an extra 0.25% to 0.75% over the standard FD rate. Some also run special senior-citizen schemes with even higher rates for specific tenures.

Is my fixed deposit safe?

Bank FDs are among the safest instruments. Deposits are insured by DICGC up to ₹5 lakh per depositor per bank, covering both principal and interest, so spreading large sums across banks adds protection.

Can I break an FD before maturity?

Yes, most FDs allow premature withdrawal, but the bank typically applies a penalty of 0.5% to 1% and pays interest at the rate applicable for the period the deposit actually stayed, not the booked rate.

How can I save tax on FD returns?

A 5-year tax-saving FD qualifies for a deduction of up to ₹1.5 lakh under Section 80C, though its interest is still taxable. The interest earned on any FD cannot be made tax-free.

Methodology & sources

How the FD Calculator is calculated, and where the underlying rules come from.

How we calculate it

Every result is produced by a single, shared and tested financial-formula library used across the whole site — so the maths is consistent from one calculator to the next. Figures are estimates based on the inputs you enter and standard assumptions (such as regular compounding and constant rates); real-world outcomes vary with taxes, fees and changing rates. All calculations run in your browser — nothing you type is stored or sent to a server.

Sources & references

Editorial policy & disclaimer. FinCalcHub provides free educational tools and estimates — not personalised financial, tax or investment advice. Verify important decisions with a qualified professional. Read our editorial approach, disclaimer and privacy policy.

Reviewed by Dhirendra Bisht, Founder & Lead Engineer, FinCalcHub — last reviewed 26 July 2026.

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