FD Calculator (Fixed Deposit Maturity & Interest)
Calculate the maturity value and interest earned on your Fixed Deposit with any compounding frequency.
FD Maturity Summary
Maturity Amount
₹1,07,291
Total Interest Earned
₹7,291
Principal
₹1,00,000
amount invested
Effective Annual Rate
7.2913%
after compounding
Principal vs Interest breakdown
Concept
A Fixed Deposit (FD) is a secure savings instrument where you deposit a lump sum with a bank or NBFC for a fixed tenure at a pre-agreed interest rate. Banks offer different compounding frequencies — quarterly is the most common, but some small finance banks and NBFCs compound monthly, which increases the effective yield even at the same nominal rate.
The Effective Annual Rate (EAR) is the true annual yield after accounting for within-year compounding. Two FDs with the same stated rate but different compounding frequencies will have different EARs — a quarterly FD will always beat an annually compounded FD at the same nominal rate. Always compare FDs using EAR, not the headline rate.
Premature withdrawal of an FD typically incurs a penalty of 0.5%–1% subtracted from the applicable rate for the period held. Some banks also offer a loan against FD (up to 90% of value) as an alternative to breaking the deposit, which preserves the interest earnings.
Formula
Variables
A₹- Maturity amount — total money received at end of tenure.
P₹- Principal — the initial deposit amount.
r- Annual interest rate as a decimal (e.g. 7.1% → 0.071).
n- Compounding periods per year — 1 annual, 2 half-yearly, 4 quarterly, 12 monthly.
t- Tenure in years (e.g. 18 months = 1.5 years).
EAR- Effective Annual Rate — the true annual yield after compounding within the year.