Compound Interest Calculator

Determine how much your money can grow using the power of compound interest.

Compound interest – meaning that the interest you earn each year is added to your principal, so that the balance doesn’t merely grow, it grows at an increasing rate – is one of the most useful concepts in finance.

It is the basis of everything from a personal savings plan to the long term growth of the stock market. It also accounts for the effects of inflation, and the importance of paying down your debt.