🏦 FD Calculator

About Fixed Deposit (FD) Calculator

A Fixed Deposit (FD) is one of the most popular and safe investment options offered by banks and post offices. Our calculator helps you find out how much interest you will earn on your deposit over a given period.

How is FD Interest Calculated?

Banks usually compound interest quarterly. The formula for compound interest used in FDs is:

A = P × (1 + r/n)^(n×t)

  • A: Maturity Amount
  • P: Principal Deposit Amount
  • r: Annual Interest Rate (Decimal)
  • n: Compounding Frequency (4 for quarterly)
  • t: Time in Years