$20,000 invested at 3% for 15 years
Future value
$31,159
Interest earned
$11,159
Total growth
55.7967%
Investing $20,000 at 3% compounded annually for 15 years grows to $31,159. That's $11,159 of compound interest earned on your original $20,000.
FV = $20,000 × (1 + 3%)^15
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