The journal

Guides for the decisions behind the numbers.

Short, useful explainers that connect directly to our calculators.

Personal finance

How compound interest works in real life

Understand the formula and see why time matters more than most people expect.

Home buying

Break down principal, interest, taxes, insurance, and closing costs.

Everyday math

Learn how to compare an original value with a new one without mixing up percentages and percentage points.

Debt & credit

Work out the single number lenders check to decide if you are overextended.

Home buying

What you can actually afford to borrow before you tour a property.

Retirement & investing

Four inputs that drive a retirement number. How to start.