Compound Interest

This calculator shows the following;

What your money will be worth if you re-invest all the interest you earned over a certain period.
How much you would have to invest at a certain interest rate to reach a target amount.
How long it would take to reach a target amount.
What interest rate you need to reach a target amount.
The effect of investing a single amount or regular amounts

For more information please visit Fido. ASIC's consumer website.