Calculate How Soon Your Investments Will Double Using the 'Rule of 72'
by Nicole Dieker on Two Cents, shared by Nicole Dieke from Lifehacker on (#4YM2Y)
How do you know if you've got your money in the right savings or investment vehicle? You might want to ask yourself how long it will take your money to double, based on the interest rates you're currently receiving-and there's a formula that makes this calculation really easy.