Compound Interest Calculator

Estimate how an initial balance grows when interest is compounded over time.

How to use the Compound Interest Calculator

Enter the starting principal, annual rate, number of years, and compounding frequency. The calculator applies compound interest to estimate the ending balance.

About this calculator

Estimate how an initial balance grows when interest is compounded over time. CalcKitt keeps the inputs blank until you enter your own values, and results are calculated in your browser.