A Fixed Deposit (FD) Calculator helps you calculate the maturity amount and interest earned on your fixed deposit investment based on principal amount, interest rate, and tenure.

Compound Interest Formula:
A = P(1 + r/n)^(nt)

Where A = Maturity Amount, P = Principal, r = Annual interest rate, n = Compounding frequency, t = Time in years

FD rates vary by bank and tenure. Currently, rates range from 3-7% per annum. Senior citizens typically get 0.25-0.5% additional interest.