Guides
Worked examples with real numbers. Each one opens in its calculator so you can change the inputs.
- 10% or 20% down on a $350,000 home: what it really costsA worked mortgage example: the monthly payment, PMI and total interest with 10% and 20% down on a $350,000 home, and what $200 extra a month does.
- A $30,000 car loan over 48, 60 or 72 monthsA worked loan example: the monthly payment and total interest on $30,000 at 7% over 48, 60 and 72 months, and how to choose a term.
- $200 a month from age 25 or 35: the cost of waitingA worked compound interest example: $200 a month at 7% from age 25 or 35 until 65, and why ten early years can beat thirty later ones.
- Percent change: raises, discounts and pointsWorked percentage examples: a 6% raise, why 25% off needs a 33% rise to undo, and the difference between percent and percentage points.
- What a BMI number means: three real examplesThree worked BMI examples, with the healthy weight range for each height, and when BMI is misleading for athletes, older adults and children.