People who track their net worth make measurably different decisions with money. Drag the sliders, spin the 3D model, and see exactly how the single most important personal-finance number is built.
Net worth = everything you own − everything you owe. Assets include cash, brokerage and retirement accounts, and home equity (market value minus mortgage). Liabilities include credit cards, car loans, and student debt. Income is not net worth — a $200k earner who spends $210k has a shrinking one.
Maya, 31, tallies her position:
| Checking + emergency fund | $18,000 |
| 401(k) + index funds | $52,000 |
| Condo equity | $35,000 |
| Student loans | −$27,000 |
| Credit card | −$3,000 |
| Net worth | $75,000 |
Research on self-monitoring (the same effect behind food diaries and step counters) shows that simply measuring a number monthly makes people optimize it. A $400 impulse buy stops being abstract when you watch it subtract from a chart. Reviewing net worth monthly turns money from a feeling into a system — respect for money starts with measuring it.
A common rule of thumb: target net worth ≈ age × pre-tax income ÷ 10 (from “The Millionaire Next Door”). A 30-year-old earning $70,000 would target ~$210,000. Most people are below this early in their careers — the point isn't the number, it's that the trendline points up. Update yours monthly, on the same day, and compare only against last month's you.
The saved example sums fifteen thousand cash, forty thousand investments and sixty thousand home equity to one hundred fifteen thousand assets. Consumer debt twelve thousand plus student loans twenty thousand totals thirty two thousand liabilities, leaving eighty three thousand net worth. Bars share four thousandths of a pixel per dollar. Home equity is already a net input, not full home price. These are entered assumptions, not verified bank balances or a valuation audit. Keeping all other saved values fixed, increasing cash from fifteen thousand to twenty five thousand raises net worth from eighty three thousand to ninety three thousand dollars. Bars share five thousandths of a pixel per net-worth dollar. The ten thousand difference is pure arithmetic, not investment growth, earned income or a forecast. The source does not connect accounts, pay debts or independently validate its commentary about returns. The source draws one coin per ten thousand dollars, rounding each category separately. Fourteen thousand cash draws one coin; fifteen thousand draws two. Bars share two hundred pixels per coin. The numerical cash readout still shows the exact entered amount, so visual coin count should not be treated as precise account value. Debt coins use negative vertical placement. Dragging rotates a local diagram rather than changing the ledger or establishing financial ownership.