Net Worth Calculator

Net worth is the fundamental measure of personal financial health. It is the total value of everything you own minus everything you owe. A positive net worth means your assets exceed your debts; a negative net worth means you owe more than you own.

The formula: Net worth = Total assets − Total liabilities

Assets (what you own):

• Cash and savings accounts
• Current value of investments (stocks, bonds, ISAs, 401k/pension)
• Property value (estimated current market value)
• Vehicles (current resale value, not purchase price)
• Business ownership stakes
• Valuable personal property (jewellery, art, collectibles)

Liabilities (what you owe):

• Mortgage outstanding balance
• Car loans
• Student loans
• Credit card balances
• Personal loans
• Any other debt

Worked example: Assets: £280,000 (home equity) + £45,000 (investments) + £12,000 (savings) + £8,000 (car) = £345,000 Liabilities: £185,000 (remaining mortgage) + £6,000 (car loan) + £3,500 (credit cards) = £194,500 Net worth = £345,000 − £194,500 = £150,500

Average net worth by age (UK, approximate):

• Under 35: £50,000–£80,000
• 35–44: £100,000–£180,000
• 45–54: £200,000–£350,000
• 55–64: £300,000–£500,000
• 65+: £350,000+

Tracking net worth over time: Calculate it quarterly or annually. The trend matters more than the absolute number. A consistently rising net worth — even slowly — means you are building wealth.

Home equity is often the largest component for most households. As you pay down a mortgage and property values rise, net worth grows significantly over decades.