Free finance cheat sheets
One-page printable references. Formulas, key numbers, and decision rules — nothing fluffy. Use them in class, share with clients, post on your fridge. License: CC-BY 4.0.
Open any sheet → click Print in your browser → choose Save as PDF. The print style is one-page-optimized.
Compound interest cheat sheet
The formula, the four levers, and the numbers that show why time beats rate.
Debt payoff cheat sheet
Snowball vs avalanche, when each wins, and the order of operations.
Retirement & 4% rule cheat sheet
The 25× rule, the 4% withdrawal, and how to size your number.
Roth vs Traditional cheat sheet
The break-even tax bracket and which to pick at each stage.
Emergency fund cheat sheet
How much, where to keep it, and when to spend it.
Mortgage decision cheat sheet
Affordability, refi, and the prepay-vs-invest math.
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Cheat sheets are for reference. For actual numbers from your inputs, use the calculators. Embed any of them on your site via /widgets.