Compound Interest Calculator

Calculate growth of your investment with compounding

10.0%
10 yrs
Ad — AdSense goes here
Maturity amount
Principal
Total interest
Effective annual rate
Growth multiple
YearBalanceInterest earned

The Power of Compounding

What is compound interest?

Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. Unlike simple interest, compounding accelerates growth exponentially over time — often called the "eighth wonder of the world".

What is the Rule of 72?

Divide 72 by the annual interest rate to find how many years it takes to double your money. At 10% per annum, your money doubles in approximately 72 ÷ 10 = 7.2 years.

Ad — AdSense goes here