Fixed Deposit Calculator
FD maturity amount with compounding.
Inputs
This calculator is for general information only and isn't financial advice. Rates, tax rules, and your actual eligibility depend on your specific situation — check with your bank or a qualified advisor before acting on it.
Formula
A = P × (1 + r/n)^(n×t)
P is the deposit amount, r is the annual interest rate, n is compounding frequency per year (annual, quarterly, or monthly — selectable), and t is tenure in years. More frequent compounding yields a slightly higher maturity on the same nominal rate.
Worked example
A ₹1,00,000 FD at 7% compounded quarterly for 5 years matures at about ₹1,41,478 — roughly ₹41,478 in interest. Switching to annual compounding on the same rate would give about ₹1,40,255, a difference of ₹1,223 that most savers don't bother calculating but adds up on larger deposits.
Where this can give the wrong answer
- Premature withdrawal penalties and reduced interest rates aren't modelled — this assumes the FD runs to full maturity at the quoted rate.
- TDS at 10% (or 20% without PAN) on interest above ₹40,000 per year (₹50,000 for senior citizens) reduces the net amount received; the maturity figure here is pre-TDS.
- Cumulative vs non-cumulative FDs behave differently — this calculator assumes cumulative (interest reinvested), not monthly/quarterly interest payouts to your bank account.
FAQ
- On a ₹1 lakh deposit at 7% for 5 years, quarterly compounding beats annual by about ₹1,200; monthly beats quarterly by a few hundred more. The bigger lever is the nominal rate itself, not the compounding interval.