$1,000 invested at 8% for 40 years
Future value
$21,725
Interest earned
$20,725
Total growth
2,072.45%
Investing $1,000 at 8% compounded annually for 40 years grows to $21,725. That's $20,725 of compound interest earned on your original $1,000.
FV = $1,000 × (1 + 8%)^40
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