Investment Glossary · Quick read · No ads
72 Rule
A simple formula used to estimate how long it takes for an investment to double: divide 72 by the annual rate of return to get the approximate number of years.
What is 72 Rule?
A simple formula used to estimate how long it takes for an investment to double: divide 72 by the annual rate of return to get the approximate number of years.
About this page. Written by Associate Professor Charles Lo, CPA, PhD. Checked against reliable sources before publication. No ads and no paywall. Editorial standards · How we fact check · Corrections log · Report an error
Educational information only. Nothing on this page is personal financial, tax or legal advice. Investing involves risk, including the possible loss of principal.
