Skip to content
BillionaireTracker

William Stone Net Worth

Source of wealth: Software

$3.49B

−$22.2M(−0.6%) today

Live · · Forbes real-time

William Stone's net worth is $3.49 billion as of November 7, 2026, according to Forbes' real-time data, which makes William Stone the 1189th richest person in the world.

Made since you opened this page

$0.00⏱ 00:00:00 on this page

$3.83 per second · based on net worth growth

Spend William Stone's money →

How much does William Stone make per second, hour and day?

Per second

$3.83

Per minute

$230

Per hour

$13,794

Per day

$331,047

Per week

$2.32M

Per year

$120.9M

Basis: Forbes 2025 World's Billionaires list → Forbes Real-Time Billionaires. How we calculate this

How long it takes William Stone to earn…

  • a Big Mac1.6 seconds
  • an iPhone 17 Pro Max8.7 minutes
  • the median US salary4.6 hours
  • a Tesla Model S Plaid6.9 hours
  • an average US home1.3 days
  • a Bugatti56.5 days
  • a superyacht2.5 years

How did William Stone get so rich?

William Stone, whose fortune comes from Software , has an estimated net worth of $3.49 billion. That ranks 1189th on Forbes' live list of the world's billionaires. Citizenship: United States (based in East Lyme, Connecticut).

Since April 2025, when Forbes measured it at $3.3 billion, William Stone's fortune has grown by $193.7 million — an average of $3.83 per second, or $331,047 per day.

William Stone's net worth was $1 billion on Forbes' 2016 list, so it has grown about 3.5x since then.

William Stone net worth history (2016–2026)

$1B20162017$1.8B20182019$1.3B20202021$2.8B20222023$2.4B20242025$3.4B2026$3.5BNow
Annual figures from Forbes' World's Billionaires lists (measured each March/April). “Now” is the live Forbes estimate.
William Stone net worth by year
YearNet worthChange
2026$3.4B+$100M
2025$3.3B+$900M
2024$2.4B+$200M
2023$2.2B−$600M
2022$2.8B+$400M
2021$2.4B+$1.1B
2020$1.3B−$600M
2019$1.9B+$100M
2018$1.8B+$500M
2017$1.3B+$300M
2016$1B—

Ranked near William Stone

#NameNet worth
1186Lorenzo FertittaCasinos, mixed martial arts$3.5B
1187David BaszuckiOnline games$3.5B
1188Luo YuhaoMobile gaming$3.5B
1189William StoneSoftware $3.49B
1190Olivier PomelCloud computing$3.49B
1191Romano MinozziUtilities, diversified$3.49B
1192Geoffrey KwokReal estate$3.49B

Compare William Stone with…

William Stone net worth: FAQs

What is William Stone's net worth?

William Stone's net worth is $3.49 billion as of November 7, 2026, according to Forbes' real-time data, which makes William Stone the 1189th richest person in the world.

How much does William Stone make per second?

About $3.83 per second. Since April 2025, when Forbes measured it at $3.3 billion, William Stone's fortune has grown by $193.7 million — an average of $3.83 per second, or $331,047 per day.

How much does William Stone make a day?

Roughly $331,047 per day — that's $13,794 an hour and $230 a minute, based on average net worth growth.

How did William Stone make their money?

The main sources of William Stone's wealth are: Software . Forbes classifies the fortune as self-made.

How much did William Stone's net worth change today?

William Stone's net worth fell by $22.2 million compared with the previous trading day, according to Forbes' real-time estimate on November 7, 2026.

How long would it take an average person to earn William Stone's net worth?

A typical full-time US worker earning about $63,128 a year would need roughly 55,343 years to earn William Stone's fortune — without spending a cent.

How old is William Stone?

William Stone is 71 years old and is a citizen of United States.

Sources

  • Net worth: Forbes Real-Time Billionaires (source), refreshed every 15 minutes.
  • History: Forbes World's Billionaires lists, 2016–2026.
  • Per-second figures are averages. See our methodology.