Free Tools

Financial Calculators

Run the numbers on your wealth-building journey. Every calculator is free, no signup required.

Explore the BookshelfThe books that shaped how Michael thinks about money — organized by where you are on the trail, each with a one-line review.
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Compound Interest Calculator

See how your money grows over time with the power of compounding. Visualize your wealth-building journey.

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Debt Snowball / Avalanche Calculator

Compare payoff strategies and find the fastest path to debt freedom.

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Emergency Fund Calculator

Find your target emergency fund size and track your savings progress.

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FIRE Calculator

Find your FIRE number and see how soon you can reach financial independence.

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Coast FIRE Calculator

See if compound growth alone will carry your savings to retirement.

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Tax Bracket Calculator

See your effective and marginal tax rates with a bracket-by-bracket breakdown.

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