Compound Interest Calculator

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Year-by-Year Breakdown

Year Balance Total Contributed Interest (Year)

How Compound Interest Works

Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. This creates a snowball effect where your money grows exponentially over time. The more frequently interest compounds, the faster your investment grows.

The Power of Starting Early

Time is the most powerful factor in compound interest. Starting to invest 10 years earlier can result in dramatically more wealth than investing larger amounts later. This is why financial advisors recommend starting to save and invest as early as possible.

Compounding Frequency Explained

The compounding frequency determines how often interest is calculated and added to your balance. Daily compounding yields slightly more than monthly, which yields more than quarterly or annually. However, the difference becomes more significant with higher interest rates and longer time periods.

The Impact of Regular Contributions

Adding regular monthly contributions significantly accelerates wealth building. Even small monthly additions can compound to substantial amounts over decades. This strategy, called dollar-cost averaging, also helps smooth out market volatility when investing in stocks or funds.