FD Calculator
Calculate the maturity amount and interest earned on a fixed deposit with quarterly compounding — the Indian banking standard.
Enter a value that satisfies the displayed range and increment.
Enter a value that satisfies the displayed range and increment.
Enter a value that satisfies the displayed range and increment.
Principal
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Interest
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Maturity
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How this FD calculator works
Enter your deposit amount, the bank's annual interest rate, and the tenure. The calculator compounds interest quarterly — A = P × (1 + r/4)4t — and shows your maturity value split into principal and interest earned.
This tool does not determine whether a deposit is appropriate or safe. Institution risk, liquidity, early-withdrawal terms, inflation, tax, TDS, insurance limits, and alternative-product risk are outside the result.
Methodology and limits
- Method version
fd-quarterly-compound-v1- Class
- A / R1 (pure-math)
- Effective date
- not-applicable
- Jurisdiction
- not-applicable
- Source status
- not-required-pure-math
- Rounding
- Keep full precision for calculation; round only when formatting displayed INR values.
- Review trigger
- formula, input-contract, rounding, assumption, or methodology-copy change
Formula: Maturity = principal × (1 + annualRatePercent / 400)^(4 × years)
Educational boundary: Deposit arithmetic only; it is not a bank quote or product recommendation.
Included: Fixed stated rate; Quarterly compounding and whole-year term
Excluded: Bank-specific compounding, day count, fees or rate changes; Taxation, TDS, deposit insurance, penalties or product suitability
Inputs: principal (INR; 1000–10000000; default 500000, existing public route default) · annualRatePercent (percent per year; 1–12; default 7, existing public route default) · years (whole years; 1–20; default 5, existing public route default)
Outputs: principal (INR; raw calculation; displayed rounded to nearest rupee) · interest (INR; raw calculation; displayed rounded to nearest rupee) · maturityValue (INR; raw calculation; displayed rounded to nearest rupee)
Assumptions: Interest compounds quarterly. The entered rate remains unchanged for the full term.
- Educational illustration only; outputs are not forecasts, guarantees, recommendations, or personalised advice.
- Returns, rates, inflation, fees, taxes, cash-flow timing, and product terms can differ from the entered assumptions.
- Displayed rupee values are rounded only after the full-precision calculation.
- Actual bank compounding, day count, premature-withdrawal terms, deposit insurance, and tax treatment can differ.
Frequently Asked Questions
How is FD maturity calculated?
This tool uses quarterly compounding as its disclosed modelling convention. The maturity value is A = P × (1 + r/4)^(4×t), where P is the principal, r the annual rate, and t the tenure in years. A bank's actual quotation may use different timing or terms.
Does this show a bank's actual quoted rate?
No. The result is arithmetic using your entered rate. Verify the institution's contractual rate, compounding, premature-withdrawal terms, tax treatment, credit risk and deposit-insurance coverage.
How is FD interest taxed?
Tax and TDS are excluded. Verify the rules, thresholds, forms and treatment that apply for the relevant tax year and your circumstances.
Do senior citizens get higher FD rates?
Rates and eligibility are institution- and product-specific. Enter the contractual rate offered to you rather than assuming a standard premium.
What is the difference between cumulative and non-cumulative FDs?
In a cumulative FD, interest compounds and is paid at maturity (what this calculator shows). In a non-cumulative FD, interest is paid out monthly/quarterly and does not compound — useful for regular income.
Disclaimer: This calculator produces illustrative estimates only. Actual returns vary and, unless stated otherwise, results exclude expense ratios, exit loads, transaction costs, and taxes. Assumed rates are inputs, not forecasts or assured returns. This is educational content, not personalized investment advice — see our full disclaimer.