Compound Interest Calculator
Calculate compound interest growth with regular contributions
Contributed
$1000.00
Interest Earned
$1009.66
Final Balance
$2009.66
What is this tool?
Calculates how an investment or savings balance grows over time with compound interest, based on your initial amount, interest rate, compounding frequency, and time horizon.
How to use it
Enter your starting amount, interest rate, how often interest compounds, and the number of years, and your projected balance is calculated automatically.
More frequent compounding (monthly versus annually, for example) produces a meaningfully larger balance over long time horizons at the same stated rate — worth checking which compounding frequency your actual account uses.
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