APBookkeeping.com

Powering Financial Connections

Explore tools that help you make smarter money decisions.

Compound Interest Calculator

Use this compound interest calculator to estimate how your investment will grow over time. Whether you're saving in a bank account or investing for the future, see how interest adds up — and how different rates or compounding frequencies can dramatically impact your returns.

Compound Interest Calculator

Watch Your Money Grow

Compound interest allows your money to grow faster than simple interest by earning interest on both your original amount and the interest that accumulates over time. It’s the secret weapon behind many long-term investment and savings strategies.


To use this calculator, enter your starting amount, annual interest rate, number of years you plan to invest, and how frequently the interest is compounded (daily, monthly, quarterly, etc.). The result shows your estimated future balance — giving you insight into how even modest contributions can grow significantly over time.


Whether you’re saving for retirement, building a college fund, or just exploring the power of interest, this tool helps you visualize the payoff of staying consistent and patient.


Calculate how savings grow over time when interest compounds. Perfect for investors and savers alike.


Financial Terms:
  • Compound Interest: Interest calculated on both the initial principal and accumulated interest.
  • Annual Contribution: The amount added each year.
  • Time Horizon: How long you plan to invest or save.
Scroll to Top