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
—
| Year | Balance | Interest 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