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Get started freeCompound interest is how money grows on money. Enter your starting amount, the rate, and how long you leave it, to see how much a business reserve or investment could become over time.
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It is interest earned on both your original amount and the interest already added, so growth speeds up the longer you leave it.
Simple interest is only ever calculated on the original amount. Compound interest is calculated on the growing balance, so it earns more over time.
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