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The Rule of 72 · Free Tool

How long until your money doubles?

A simple shortcut: divide 72 by your return rate to estimate doubling time. Adjust the inputs and watch your money compound in real time.

Your Money Doubles Every
10.3 yrs
Based on a 7% annual return
Compound Growth Over Time
Your Doubling Milestones
Estimates for educational purposes only. The Rule of 72 is an approximation — actual returns vary. FinMango · 501(c)(3) · finmango.org