Calculate fixed deposit maturity amounts with principal, interest rate, tenure, and compounding frequency for bank FD comparison.
A fixed deposit quote does not determine its maturity value until the tenure and interest-crediting interval are known. Enter the amount deposited, the annual interest rate, the deposit term, and how often interest compounds. The calculator then estimates the balance at maturity, allowing bank offers to be compared on consistent assumptions. The usual mistake is treating the quoted annual rate as the total return for every year. With compounding, interest credited during one period becomes part of the balance used for later periods.
A concrete input and expected output from the current implementation.
Input
Principal: 10000 Annual interest rate: 6% Tenure: 2 years Compounding frequency: annually
Expected output
Maturity amount: 11236.00
Annual compounding applies 6% twice: 10000 x 1.06 x 1.06 = 11236. The maturity amount therefore contains the original 10000 plus 1236 in accumulated interest.
For principal P, annual rate r written as a decimal, n compounding periods per year, and tenure t in years, the standard maturity relationship is A = P(1 + r/n)^(nt). The compounding frequency sets n. For example, annual compounding uses one period per year, while quarterly compounding uses four.
A comparison is meaningful only when principal, tenure, rate basis, and compounding frequency are entered consistently for every fixed deposit. A longer tenure creates more interest-bearing periods, while more frequent compounding adds credited interest to the balance sooner. The result reflects the entered assumptions and does not supply bank-specific conditions that were not entered.
Under the standard compound-interest model, yes, when the principal, positive nominal annual rate, tenure, and other assumptions are identical. More frequent compounding credits portions of interest sooner. Real fixed deposit offers may change the quoted rate or pay interest out instead, so frequency alone cannot rank products whose other terms differ.
Not always. It matches the entered values under the stated compounding schedule. A bank may use exact opening and maturity dates, special customer rates, partial-period treatment, periodic payouts, product-specific rounding, tax withholding, or early-closure rules. The bank's official deposit advice or maturity quotation remains the controlling figure.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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