Basis Points
Tools
Run your own numbers. Every tool here is arithmetic, not advice — built to make the math visible so the decision is yours. Each one pairs with a lesson.
01CompoundingSee what time does to money.Open the tool →02Credit Card PayoffThe true cost of a balance, and when it clears.Open the tool →03Buying a CarWhat the loan really costs, after interest and depreciation.Open the tool →04Rent vs. BuyThe honest break-even on a home.Open the tool →05Take-Home PayWhat is actually yours after 2026 taxes.Open the tool →06InflationWhat your money will really be worth.Open the tool →07Student Loan ROIThe door, not the room — run the numbers.Open the tool →08Emergency FundHow much cushion you actually need.Open the tool →09Small-Habit CompounderWhat a daily expense becomes over decades.Open the tool →