Doubling Your Money ( Savings And Assumptions )

Compound interest can have a dramatic affect on the growth of a single deposit. By dividing 72 by your investment return you can estimate the amount of time it may take for your money to be worth about twice as much as it is today.

Future value of savings
Initial balance or deposit ($)
Before-tax return on savings (-12% to 12%)
Marginal tax bracket (0% to 75%)