Compound Interest Calculator

Calculate how your investments grow over time with compound interest. See the power of reinvesting your earnings.

Compound Interest Calculator

How to Use This Calculator

  1. Enter your initial investment amount
  2. Input your expected annual interest rate
  3. Specify the investment time period in years
  4. Add any monthly contributions (optional)
  5. View your projected investment growth

How Compound Interest Works

Compound interest is calculated using the formula:

A = P(1 + r/n)^(nt)

Where:

  • A = Final amount
  • P = Principal amount
  • r = Annual interest rate (decimal)
  • n = Number of times interest is compounded per year
  • t = Time in years