Agent Roth compound-growth tool

Rule of 72 Calculator: Estimate Doubling Time

Use the Rule of 72 for a quick estimate, then compare it with exact annual compounding.

Looking for the different retirement-withdrawal rule? Read how Rule 72(t) and SEPP payments work.

Step 1 of 425%

Location

What state do you live in?

State does not change this calculation, but it helps provide useful context if you request a review.

Hypothetical constant-return illustration only. Not tax, legal, investment, or financial advice. Actual returns vary and may be negative.