Final Amount
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Total Invested
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Interest Earned
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Return on Investment
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Total Value
Interest Earned
Amount Invested
Year-by-Year Breakdown
| Year | Invested | Interest | Balance | Growth |
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The most powerful force in investing is time. See exactly how compound interest transforms your savings.
Start Calculating ↓Final Amount
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Total Invested
—
Interest Earned
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Return on Investment
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| Year | Invested | Interest | Balance | Growth |
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Your starting amount earns interest based on the annual rate and compounding frequency you choose.
Each period, interest is calculated on your total balance — including previously earned interest. This is the snowball effect.
Regular monthly contributions are added to the balance, each earning compound interest from the day they're deposited.
The longer you stay invested, the faster growth accelerates. The last few years can earn more than the first decade combined.
The formula
A = P(1 + r/n)nt + M × [(1 + r/n)nt − 1] / (r/n)
Where P = Principal · r = Annual rate · n = Compounding periods/year · t = Time (years) · M = Monthly contribution