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Compound interest, explained
Work through compound growth with monthly deposits, distinguish nominal and effective annual rates and see how contribution timing changes a projection.
Understand the numbers.
Choose your next step.
Practical explainers for the decisions behind everyday money. Each guide lays out its assumptions, shows where its figures come from, and points to a relevant calculator when one is available.
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How debt payoff estimates work
Understand card interest, capped final payments and different debt payoff orders, with worked examples and links to free comparison tools.
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How mortgage amortization works
Follow a mortgage payment through interest and principal, calculate a fixed monthly payment and understand compounding, amortization and mortgage terms.
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