Know Your Numbers: Net Worth, Cash Flow, Savings Rate

You cannot improve what you have never measured. Three numbers describe your entire financial life, and together they take less than an hour to calculate. Every remaining step in this course exists to move one of them.

Number 1: Net worth

Net worth is everything you own minus everything you owe. It is the scoreboard of your financial life: not your salary, not your car, the single honest total.

Assets include checking and savings balances, retirement and brokerage accounts, crypto, your home's market value, and your car's resale value. Liabilities include the mortgage principal, student loans, auto loans, credit card balances, and anything else you owe.

Use the net worth calculator to add it up in a minute, and see U.S. medians by age for honest context. A negative number early in adult life is normal: student loans do that. Direction beats level. Track it monthly or quarterly and watch the trend, not the noise.

Number 2: Monthly cash flow

Cash flow is what comes in minus what goes out in a typical month. Positive cash flow funds every goal in this course; negative cash flow quietly becomes credit card debt.

To find it, you need two honest figures:

• Take-home income: what actually lands in your account after taxes, insurance premiums, and payroll deductions. For irregular income, average the last six months and plan on the low side.
• True monthly spending: pull the last three months of bank and card statements and total them. Include the annual bills (insurance, subscriptions, car registration) divided by 12. Most people discover they spend 10–20% more than they guessed, and subscriptions are a common culprit.

Number 3: Savings rate

Savings rate is the share of take-home pay that builds net worth:

Savings rate = (saved + invested + extra debt principal) ÷ take-home pay × 100

Count 401(k) and IRA contributions, brokerage deposits, cash savings, and extra principal payments on debt. Do not count minimum payments or money that will be spent later this year.

As a rough U.S. ladder: 10% keeps you on a traditional retire-at-65 track, 20% builds real flexibility within a decade, and 30%+ puts early financial independence on the table. Why savings rate beats salary explains the math.

What good looks like

Action items

• Calculate your net worth and record it with the date.
• Total your last three months of statements to find true monthly spending.
• Compute your savings rate from last month's numbers.
• Move to Step 3: Build a budget that sticks.