Tools

A variety of tools for planning, modeling, and experimentation.

FIRE Planner
Compare Traditional, Lean, Fat, Barista, and Coast FIRE in one calculator with side-by-side assumptions, timeline projection, and practical targets.
Financial Planning
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Loan Amortization
Understand monthly payment, interest drag, and payoff shape with an amortization schedule and cumulative principal vs. interest chart.
Debt Modeling
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Loan Payment Calculator
Estimate monthly payment, total interest, total paid, payoff date, and compare a 1% lower or higher rate scenario.
Loan Planning
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