Net Worth Calculator: Formula, Worked Examples and What It Means
Short answer: a net worth calculator subtracts everything you owe from everything you own. The formula is net worth = total assets − total liabilities. A 28-year-old with $33,000 of assets and $26,500 of debts has a net worth of $6,500, a 40-year-old with $564,000 and $302,000 has $262,000, and a 58-year-old with $1,070,000 and $120,000 has $950,000. The direction over time matters more than the number.
Key takeaways
- Net worth = assets − liabilities. Assets are what you own, and liabilities are what you owe.
- Use realistic sale values for the home and car, and include every debt, however small.
- A low or negative net worth early in life is common, especially with student loans. The trend is what to watch.
- Track it monthly or quarterly. Four numbers explain a year of change: savings, investment growth, debt paid down and property value.
What is the net worth formula?
Net worth = total assets − total liabilities.
- Assets: cash and savings, retirement accounts, other investments, the market value of your home, and the resale value of a car or other valuables.
- Liabilities: mortgage, car loans, student loans, credit card balances, personal loans and any other debt.
You can run the sum in a spreadsheet, in a planner, or with a pencil. See how to calculate and track your net worth for what to count, and the net worth spreadsheet template for a ready layout.
What do three worked examples look like?
| Item | Age 28 | Age 40 | Age 58 |
|---|---|---|---|
| Cash and savings | $6,000 | $20,000 | $40,000 |
| Retirement accounts | $18,000 | $150,000 | $520,000 |
| Other investments | - | - | $60,000 |
| Home (market value) | - | $380,000 | $450,000 |
| Car (resale value) | $9,000 | $14,000 | - |
| Total assets | $33,000 | $564,000 | $1,070,000 |
| Mortgage | - | $290,000 | $120,000 |
| Student loan | $24,000 | - | - |
| Car loan | - | $9,000 | - |
| Credit card | $2,500 | $3,000 | - |
| Total liabilities | $26,500 | $302,000 | $120,000 |
| Net worth | $6,500 | $262,000 | $950,000 |
| Net worth ÷ yearly pay | 0.12× (on $55,000) | 2.9× (on $90,000) | 8.6× (on $110,000) |
These are made-up profiles to show the method. Dividing net worth by yearly pay gives a rough sense of where you are relative to your income. It is not a verdict, since home values, location and pensions change the picture. For benchmarks on retirement savings, see am I on track for retirement.
How does a year of net worth change break down?
Net worth moves for four reasons. Take the 40-year-old, whose net worth rose $26,500 in a year:
| Driver | Amount |
|---|---|
| New savings (retirement and cash) | +$12,000 |
| Investment growth | +$8,000 |
| Mortgage principal paid | +$6,500 |
| Home value change | $0 |
| Change in net worth | +$26,500 |
Only the first and third are in your control. Growth comes with markets, and home values move with the housing market. Knowing which driver did the work stops you reading too much into a good or bad year.
How do you read the number?
- Look at the trend, not one reading. Is it higher than a year ago?
- Split liquid from illiquid. You cannot spend your house. Subtract home equity and retirement money to see what you could use in an emergency.
- Compare with yourself, not with strangers. Averages hide huge differences.
- Check the debt side. A high card balance costs more each month than most investments earn.
- Connect it to goals. Use the free Goal check to see whether the savings you add each month reach your targets.
What if your net worth is negative?
It is common after school or a home purchase with a small deposit, and it is fixable. The order is a starter emergency fund, the employer retirement match, then high-interest debt. See the debt payoff plan and your first 90 days. Track it monthly so you can see the number turning.
Prefer an app? See the best app to track net worth, which compares linked and manual options.
What mistakes distort a net worth calculation?
- Using a hopeful home value. Use a realistic sale price after costs, not the highest listing in the street. A home valued at $380,000 that would net $355,000 after selling costs changes your number by $25,000.
- Leaving out small debts. A store card, a loan from family or an unpaid tax bill still counts as a liability.
- Counting the car at its purchase price. Cars lose value fast, so use what it would sell for today.
- Treating retirement money as spendable. Early withdrawals can carry tax and a penalty, so keep a second, liquid view as well.
- Mixing dates. Use balances from the same day, so changes mean something.
How do you grow net worth faster?
Four levers do almost all the work. Here is what each might look like in dollars:
| Lever | Example | Effect |
|---|---|---|
| Save more | An extra $200 a month invested for 10 years at an assumed 7% | About $34,617 |
| Pay off expensive debt | Clear a $4,000 card at 22% | Saves about $880 of interest a year |
| Pay down the mortgage | Extra principal each month | Raises equity and cuts interest |
| Raise income | A raise or side income, saved | Speeds up the other three |
Paying off a 22% card is a certain 22% return on that money, which few investments can match. See the debt payoff calculator guide and what $500 a month is worth.
How is net worth different from income and cash flow?
Income is what you earn in a period, cash flow is what is left after spending, and net worth is a snapshot of what you have built. A high earner with big spending can have a low net worth, and a modest earner who saves steadily can have a high one. All three matter, and net worth is the scoreboard. To see where cash goes each month, read where does my money go.
Sources and further reading: the Consumer Financial Protection Bureau has a free net worth worksheet and guidance on building savings.
General education, not financial advice. Reviewed October 2026. The three profiles and the year breakdown are illustrations. Home and car values are estimates, and net worth does not capture pensions or Social Security.
Frequently asked questions
How do I calculate my net worth?
Add up everything you own, such as cash, retirement accounts, investments, home value and car value, then subtract everything you owe, such as mortgage, student loans, car loans and cards. The result is your net worth.
What is a good net worth for my age?
There is no single number, because income, location and goals differ. A rough check is net worth as a multiple of yearly pay, such as 2.9 times at age 40 in the example. Focus on the trend and on your own goals.
Should I include my house in my net worth?
Most people include it at market value, minus the mortgage. Many also look at a version without the home, since you cannot spend your house in an emergency.
Can net worth be negative?
Yes. Student loans, a new mortgage with a small deposit or credit card debt can make net worth negative, especially early in life. It improves as you pay down debt and save.
How often should I calculate my net worth?
Monthly or quarterly is enough. Daily checks add noise from market moves. Pick a fixed date, record the number in the same place each time and look at the trend over a year.