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- Enter the deposit, rate and tenure to see the maturity amount and interest.
- Choose quarterly, monthly, half-yearly or yearly compounding, or a payout FD.
- Shows the effective annual yield so you can compare banks fairly.
- Works for Indian FDs, US certificates of deposit and UK fixed-rate bonds.
How to use the FD calculator
Choose a currency
Pick ₹ INR, $ USD or £ GBP. The maths is the same everywhere.
Enter the deposit amount
Type the lump sum you plan to deposit, for example ₹1,00,000.
Set rate and tenure
Enter the yearly interest rate and the tenure in years, months or days.
Select compounding
Most Indian banks compound quarterly. Choose “not compounded” for a monthly or quarterly payout FD.
How FD interest is calculated
In a cumulative FD the bank adds interest to your deposit at the end of every compounding period, and the next period’s interest is calculated on the larger balance. In a payout FD the interest is sent to your account instead, so it does not compound.
Cumulative FD formula
A = P × (1 + r/n)n × t
P = deposit, r = yearly rate as a decimal
n = compounding periods per year (4 for quarterly)
t = tenure in years
For a payout FD: interest = P × r × t.
Effective annual yield
APY = (1 + r/n)n − 1
A 7% rate compounded quarterly gives an effective yield of about 7.19%. Use this figure when you compare offers with different compounding.
FD calculation examples
Example 1: ₹1,00,000 for 5 years at 7%
A cumulative FD compounded quarterly.
With yearly compounding the same deposit would grow to ₹1,40,255.17; with monthly compounding to ₹1,41,762.53.
Example 2: $10,000 CD for 2 years at 4.5%
A US certificate of deposit compounded monthly.
US banks usually quote APY, so compare the APY shown by the calculator with the bank’s figure.
Example 3: payout FD of ₹5,00,000 at 7.25% for 3 years
Interest is paid out every quarter instead of being reinvested.
Payout FDs suit retirees who want a regular income from savings.
Reference: ₹1,00,000 for 5 years (quarterly)
Maturity value by interest rate.
Half a percentage point adds roughly ₹3,500 over five years on a ₹1 lakh deposit.
Where an FD calculator helps
Comparing bank offers
See how rate and compounding change the maturity amount before you lock your money in.
Senior citizen rates
Check how much an extra 0.25%–0.5% senior citizen rate adds over the tenure.
Laddering deposits
Split savings into FDs of different tenures and calculate each one.
FD vs RD
Compare a lump-sum FD with saving monthly in an RD.
Results assume a fixed rate for the whole tenure. Banks may round differently, deduct tax at source and charge a penalty for early withdrawal. Confirm the final figures with your bank. To see how long-term compounding works on any amount, try the compound interest calculator.
FD calculator FAQ
How is FD interest calculated in India?
Most banks compound FD interest quarterly using A = P × (1 + r/4)^(4t). Short deposits of under six months often earn simple interest instead.
What is the difference between cumulative and payout FDs?
In a cumulative FD interest is added to the deposit and compounds until maturity. In a payout FD interest is paid to you monthly or quarterly and does not compound.
Is FD interest taxable?
Yes. In India it is taxed at your slab rate and banks may deduct TDS. In the US it counts as ordinary income, and in the UK it falls under your personal savings allowance rules.
What is APY?
Annual percentage yield is the return over one year after compounding. It lets you compare FDs or CDs that compound at different frequencies.
Can I calculate an FD for days?
Yes. Choose days as the tenure unit. The calculator treats a year as 365 days.
Can I withdraw an FD early?
Usually yes, but banks often reduce the rate by around 0.5%–1% as a penalty. The calculator assumes you hold the deposit until maturity.