How to Calculate Your Net Worth (And Why It Matters)

Income gets all the attention. People know what their friends earn (or assume they do). But income only tells you how fast money is flowing through your hands. Net worth tells you how much you've actually kept. It's the most important financial number you can track, and most people have never calculated it.

The formula

Net worth = Total Assets − Total Liabilities

That's it. Add up everything you own. Subtract everything you owe. The difference is your net worth.

Positive number = you own more than you owe.

Negative number = you owe more than you own. Common in your 20s, especially with student loans. Not a moral failure.

What counts as an asset

• Cash: Checking and savings account balances.
• Investments: 401(k), IRA, brokerage accounts, individual stocks.
• Real estate: Current market value of your home (use Zillow or a recent appraisal, not what you paid for it).
• Vehicles: Current resale value (Kelley Blue Book), not purchase price.
• Significant possessions: Jewelry, art, collectibles only if they have meaningful resale value.
• Cryptocurrency: Current market value.
• Business ownership: Reasonable estimate of your stake's value.

Things that are NOT assets despite feeling like they should be: clothes, furniture, electronics, your education, your future earning potential. These have value but not in a "could sell tomorrow" sense.

What counts as a liability

• Credit card balances (current, not the limit)
• Student loans
• Auto loans
• Mortgages
• Personal loans
• Medical debt
• Money owed to family or friends
• Tax debt

Future obligations that aren't yet owed (next month's rent, next year's taxes) are not liabilities. They're future expenses.

The shocking part

The first time most people calculate their net worth, they're surprised, usually unpleasantly. The combination of "I own this nice car" + "I owe almost as much on it as it's worth" + "I have credit card debt I forgot about" + "my retirement balance is smaller than I thought" usually produces a number well below what people imagined.

This is good information. It's the actual baseline. Decisions based on a real number are always better than decisions based on a hopeful guess.

What a healthy net worth looks like by age

The famous (rough) benchmarks:

• By 30: 1× annual salary
• By 40: 3× annual salary
• By 50: 6× annual salary
• By 60: 8× annual salary
• By 67 (retirement): 10× annual salary

These are rules of thumb from Fidelity, not laws of physics. They assume retirement at 67 with Social Security and a moderate lifestyle. People aiming for early retirement need much more. People with pensions or expensive cities need to adjust accordingly.

The more useful question: are you ahead or behind compared to last year? Direction matters more than absolute level.

How often to track it

Quarterly is ideal. Monthly is overkill and triggers obsessive behavior. Annually is enough for the long-term picture. The frequency depends on your psychology, track often enough to stay aware, not so often that you stress about every market dip.

The two numbers within the number

It's worth tracking two sub-numbers separately:

1. Liquid net worth: Just cash + investments + crypto. Excludes house and cars. This is the number that matters for financial flexibility, money you can actually deploy.
2. Total net worth: Includes everything. The big-picture wealth measure.

Many people have a high total net worth driven mostly by home equity but a low liquid net worth, which means they're "house rich, cash poor." That's a real situation with real implications.

Why net worth beats income as a wealth metric

Two doctors earn $250,000/year. One has $1.5 million net worth. The other has $200,000 net worth. They earn the same. The first is wealthy. The second is just well-paid. The income tells you almost nothing about which is which.

Net worth captures the difference between people who keep what they earn and people who don't. Over a 30-year career, that difference is enormous and almost entirely invisible from the outside.

The compound effect

Net worth grows exponentially, not linearly. The first $100k is the hardest. The next $100k usually comes faster because compound returns start contributing meaningfully. By the time you have $500k+, the investment growth in a single year can equal what it took 5+ years of saving to build originally. That's the milestone where wealth-building gets easier instead of harder.

The catch: you have to actually start tracking, and you have to stick with it long enough to reach the easier zone. Calculate it today.