# THE RULE OF 72

```THE RULE OF 72
You can calculate the number of years
it will take to double your money by
dividing 72 by the rate of return you
For example:
72
8 (rate of return your investment is earning)
9 (years to double your money)
Or, you can determine the rate of return you would need
to double your money by dividing 72 by the number of
years you have to invest your money.
For example:
72
6 (years to double your money)
12 (rate of return required to reach your goal)
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www.sunlife.ca | 1 877 SUN-LIFE (1 877 786-5433)
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LIFE’S BRIGHTER under the sun
DOUBLE YOUR
MONEY
A brilliant move
Let us show you how to make
Using a special mathematical
formula (Rule of 72) as a guide,
this tool shows how long it will
based on the interest rate it is
earning.
Choose an annual interest rate
by rotating the wheel. The window
shows you about how long it would
These calculations are for illustrative purposes only. They do not necessarily guarantee how
many years it would take to double your investment.
A1621-E-11-07
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%
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ars
ye
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s
year
20.6
18 years
16 y
ear
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28.8
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36 years
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ars
9 yea
rs
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%
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.
0
1
9.0%
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12 years
ars
8 ye
8.5
%
%
7.0
7.5%
8.0%
```