Fixed Deposit (FD) Calculator
Compound interest FD maturity: A = P × (1 + r/n)n×t — see maturity, interest earned, and year-by-year balance for your principal, rate, tenure, and compounding.
Inputs
Results
Maturity amount
Year-by-year growth
| Year | Balance |
|---|
Compound interest on FDs
Banks quote an annual rate but credit interest per compounding period. More frequent compounding (monthly vs yearly) slightly increases the effective yield for the same nominal rate. This calculator uses the standard formula A = P(1 + r/n)nt with r as the nominal annual rate in decimal, n compounding periods per year, and t in years.
TDS and senior-citizen bonus rates are not applied here — enter the rate you expect after talking to your bank. Compare cumulative vs non-cumulative options at the branch.
Frequently asked questions
What is a fixed deposit (FD)?
An FD locks a lump sum for a fixed tenure at a stated rate; interest compounds per the bank’s rules.
Is FD return guaranteed?
Bank FDs are subject to bank rules and DICGC insurance limits — verify with your bank.
Does this include TDS or senior citizen rates?
No — enter the rate you expect; TDS and special rates are not modeled here.
How does compounding affect maturity?
More frequent compounding usually increases maturity slightly for the same nominal annual rate.
Is this calculator free and private?
Yes. It runs in your browser; inputs are not sent to our servers.