The Rule of 72 is a way to estimate how long it will take for an investment to double at a given interest rate, assuming a fixed annual rate of interest. You simply take 72 and divide it by the interest rate number. So, if the interest rate is 6%, you would divide 72 by 6 to get 12. This means that the investment will take about 12 years to double with a 6% fixed annual interest rate.
This calculator flips the 72 rule and shows what interest rate you would need to double your investment in a set number of years. Enter the number of years you'd like an investment to double and see what the interest rate would be to make it happen.
Neither Banzai nor its sponsoring partners make any warranties or representations as to the accuracy, applicability, completeness, or suitability for any particular purpose of the information contained herein. Banzai and its sponsoring partners expressly disclaim any liability arising from the use or misuse of these materials and, by visiting this site, you agree to release Banzai and its sponsoring partners from any such liability. Do not rely upon the information provided in this content when making decisions regarding financial or legal matters without first consulting with a qualified, licensed professional.