
Take the expected interest and divide it into 72. That is an easy way to calculate the number of years it takes to double your money.
Watch The Results - At 8% Each Dollar Multiplies By 2,199 Times in 100 Years
Invest $100 at 7%...8%...9% compounded for 25, 50, 75 and 100 years
| Years | Compound @ 7% | Compound @ 8% | Compound @ 9% |
| 25 Years | $543 | $685 | $862 |
| 50 Years | $2,946 | $4,690 | $11,414 |
| 75 Years | $15,988 | $32,120 | $64,119 |
| 100 Years | $86,772 | $219,976 | $552,904 |
Invest $10,000 at 7%...8%...9% compounded for 25, 50 and 100 years
| Years | Compound @ 7% | Compound @ 8% | Compound @ 9% |
| 25 Years | $54,274 | $68,485 | $86,230 |
| 50 Years | $294,570 | $469,014 | $1,141,400 |
| 75 Years | $1,598,760 | $3,210,000 | $6,411,909 |
| 100 Years | $8,677,160 | $21,997,612 | $55,290,407 |