Estimate the gross maturity value, interest earned, and effective annual yield of a cumulative fixed deposit from principal, rate, term, and compounding.
Last updated
Fixed deposit planning
Estimate a cumulative FD maturity amount before tax or early-withdrawal adjustments
Use this for reinvestment-style fixed deposits where interest stays in the account until maturity. It is a
gross estimate, so payout FDs, TDS, and premature withdrawal penalties are excluded.
FD assumptions
This models a cumulative fixed deposit using the standard compound-interest formula. It does not include bank-specific broken-period rules, monthly income payout options, tax on interest, or premature closure penalties.
Display currency
Result
$141,477.82
Estimated gross maturity value after 5 years at 7% nominal annual interest with quarterly compounding.
Interest earned
$41,477.82
Effective annual yield
7.19%
Principal
$100,000.00
Compounding
Quarterly
Interpretation
This is the projected balance if the deposit stays locked for the full term and interest keeps compounding inside the FD. If the real product pays interest out periodically or applies a lower rate on premature withdrawal, the realised amount will differ.
A fixed deposit calculator helps you estimate how much a cumulative FD may grow by maturity from the opening deposit, annual interest rate, tenure, and compounding schedule. That matters because many users want more than a single maturity figure: they also want to know how much of the final balance comes from interest, how compounding changes the result, and where bank-specific penalties or tax rules start to break the simple model.
What this calculator is modelling
This page models a cumulative or reinvestment-style fixed deposit where the interest stays inside the deposit until maturity. In Indian retail banking, that is the common use of the term FD, although the same basic maths also describes many fixed-rate term deposits in other jurisdictions.
That scope matters because not every deposit product behaves this way. Monthly income deposits, payout options, callable deposits, and products with institution-specific broken-period rules can mature at a different amount even when the headline rate and term look similar.
How the FD maturity amount is calculated
The calculator applies the standard compound-interest formula to the opening principal, annual nominal rate, compounding frequency, and total tenure. If tenure is entered in months, the page first converts it into years so the same formula can be used consistently.
This is a gross maturity estimate. It tells you what the balance would be if the deposit ran for the full term at the stated nominal rate and the interest kept compounding inside the FD. It does not try to infer how one specific bank handles tax, broken periods, or premature closure.
Maturity = P × (1 + r / n)^(n × t)
P = principal, r = nominal annual rate, n = compounding periods per year, and t = tenure in years.
Effective annual yield = (1 + r / n)^n − 1
Converts the entered nominal annual rate into an annualised effective yield after compounding.
Worked example: 100,000 at 7% for 5 years
Suppose the principal is 100,000, the annual nominal rate is 7%, the tenure is 5 years, and compounding is quarterly. Under the cumulative-FD model used here, the projected maturity amount is about 141,477.82, which means total interest earned of about 41,477.82.
That same example also shows why the effective annual yield matters. A 7% nominal rate compounded quarterly works out to an effective annual yield of about 7.19%, which is slightly higher than the headline nominal rate because interest is being added back into the deposit during the year.
If the deposit paid interest out monthly instead of reinvesting it, the cash-flow experience would be different even if the nominal rate looked similar. That is why this calculator is strongest for cumulative FDs rather than payout variants.
What this estimate excludes
This page does not model TDS, post-tax yield, senior-citizen rate variations, bank-specific broken-period treatment, or the lower rate often applied on premature withdrawal. Those factors can matter as much as the nominal rate when you compare real FD options.
The page also does not decide whether the projected balance is fully protected by deposit insurance. Insurance coverage depends on the institution, ownership structure, and the applicable limits in the jurisdiction where the deposit is held.
Use the result as a first-pass planning number. Before opening or renewing an FD, compare it against the bank's official product sheet, premature-closure rules, payout option, and tax treatment.
Further reading
DICGC — Depositors' guide — Official Indian deposit-insurance guide covering what deposit types are protected and how coverage works.
Yes, but usually by a modest amount unless the rate or tenure is large. More frequent compounding means interest is added back to the deposit more often, so the maturity value and effective annual yield increase slightly versus annual compounding at the same nominal rate. The calculator shows this explicitly so you can compare headline rates on a more like-for-like basis.
What is the effective annual yield shown here?
It is the annualised yield implied by the selected compounding schedule, not a separate bank quote. For example, a 7% nominal rate compounded quarterly works out to an effective annual yield of about 7.19%. That makes it easier to compare deposit offers that use the same nominal rate but compound differently.
Is this maturity amount pre-tax or post-tax?
It is a pre-tax projection. The page does not deduct TDS, income tax, or any local tax treatment on interest income, because those depend on jurisdiction, thresholds, declarations, and your wider tax position. If tax matters for the decision, compare this gross estimate with the bank's post-tax treatment or your own tax calculation.
What happens if I withdraw the FD early or use a payout FD instead?
This calculator does not model premature closure penalties or non-cumulative payout variants. Many banks reduce the applicable rate on early withdrawal, and payout deposits distribute interest periodically instead of compounding it inside the deposit. Use the number here for cumulative-FD planning only, then cross-check the actual product terms before relying on it.
