Compound Interest Calculator

Calculate how your investments grow over time with compound interest

Calculator Inputs
Initial investment amount
Annual interest rate in percentage
Investment duration in years
How often interest is compounded
Regular additional contributions (optional)
How often you make additional contributions
About Compound Interest
What is Compound Interest?

Compound interest is the interest earned on both the principal amount and the accumulated interest from previous periods. This creates a snowball effect where your money grows faster over time.

Key Factors
  • Principal: Initial investment amount
  • Rate: Annual interest rate
  • Time: Investment duration
  • Frequency: How often interest compounds
  • Contributions: Regular additional investments