What is FD?
A Fixed Deposit (FD) locks a lump sum with a bank for a fixed tenure at a predetermined interest rate. Indian banks typically compound interest quarterly. FDs are insured up to ₹5 lakh per bank per depositor under DICGC.
Formula
Standard compound interest formula:
A = P × (1 + r/n)^(n × t) A = maturity amount P = principal r = annual interest rate (decimal) n = compounds per year (4 for quarterly) t = years
How to use this calculator
Enter the deposit amount, the bank's offered rate, tenure in years, and compounding frequency (quarterly is the default for most Indian banks). The maturity amount and total interest update live.