Rule of 72 Calculator
Estimate how many years it may take to double an investment, or the annual return needed to double in a target time.
Estimated time to double
9.0 years
Based on the Rule of 72 approximation: 72 divided by annual return rate.
Estimated annual return needed
7.2%
Based on the Rule of 72 approximation: 72 divided by years to double.
What Does Probate Really Cost in Your State?
Select a state to compare estimated probate costs, timelines, and court involvement across four common estate-planning strategies.
Baseline scenario: a hypothetical estate of approximately $1,000,000 — a single decedent, three cooperative adult children, a $500,000 primary residence with no mortgage, and $500,000 in bank and brokerage accounts. Figures are modeled educational estimates, not quotes.
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—| Planning Strategy | Est. Probate Costs | Est. Timeline | Court Involvement |
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Potential savings with a properly funded living trust: —
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Assumptions & Disclaimers: Figures are modeled, generalized estimates for a cooperative-family scenario and vary significantly with estate size, asset mix, heir complexity, county fee schedules, local attorney rates, and any contests. State tax thresholds change; verify current law. This tool is for informational and educational purposes only and does not constitute legal, financial, or tax advice. Consult a qualified estate planning attorney and your financial advisor before acting.
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