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Compound Interest Calculator
See how savings or investments grow when interest earns interest.
How this calculator works
Enter the starting amount, the yearly rate, the number of years and how many times a year interest compounds. More frequent compounding grows the balance slightly faster.
Example
$10,000 at 7% compounded monthly for 20 years grows to $40,387.39.
Tips
- Start early. Time matters more than the size of the starting amount.
- Real returns vary from year to year, so use a cautious rate when planning.
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Results are estimates only. See our disclaimer.