Retirement Calculators by Methodology
Different financial personalities use different rules of thumb. Dave Ramsey says 8% withdrawal; the Trinity Study says 4%. Here are honest, independent analyses of each — with the math laid out side by side.
Popular Personalities
Research-Based Methodologies
Alternatives to Corporate Calculators
These pages are independent educational analyses of each methodology. They are not officially endorsed by or affiliated with the named personalities or their organizations.