Wealth Index Calculator (Millionaire Next Door)

Popularized by the book "The Millionaire Next Door," the wealth index is a quick gauge of whether the net worth you have built lines up with what someone of your age and earnings would typically hold. The benchmark sorts people into two camps: a "Prodigious Accumulator of Wealth" (PAW), who has banked far more than the formula predicts, and an "Under Accumulator of Wealth" (UAW), who has fallen short. Treating it as a financial health check for 2026 gives you a concrete reference point rather than a vague sense of how you are doing.

The math behind the score is deliberately simple: Expected Net Worth = (Your Age x Your Pre-Tax Annual Household Income) / 10. Pre-tax household income here means your gross earnings before any deductions are taken out. Once you have that target figure, you stack your real net worth against it. Land at double the expected amount and you qualify as a PAW; come in at half or less and you fall into the UAW group.

The formula is a rough yardstick, not a verdict, and it makes no allowance for an inheritance, the proceeds of a business sale, or other one-off windfalls. People often trip up by counting only cash and liquid holdings, leaving out the equity in their home or the balances in their retirement accounts. Use total net worth, meaning everything you own minus everything you owe, and read the result as a prompt to keep improving rather than a final score on your success.