Thomas Duff Net Worth
Source of wealth: Tires, diversified
$4.45B
— today
Live · · Forbes real-time
Thomas Duff's net worth is $4.45 billion as of November 7, 2026, according to Forbes' real-time data, which makes Thomas Duff the 962nd richest person in the world.
Made since you opened this page
$0.00⏱ 00:00:00 on this page$22.84 per second · based on net worth growth
Spend Thomas Duff's money →How much does Thomas Duff make per second, hour and day?
Per second
$22.84
Per minute
$1,371
Per hour
$82,230
Per day
$1.97M
Per week
$13.81M
Per year
$720.8M
Basis: Forbes 2025 World's Billionaires list → Forbes Real-Time Billionaires. How we calculate this
How long it takes Thomas Duff to earn…
- a Big Mac0.26 seconds
- an iPhone 17 Pro Max1.5 minutes
- the median US salary46.1 minutes
- a Tesla Model S Plaid1.2 hours
- an average US home5.1 hours
- a Bugatti9.5 days
- a superyacht152.0 days
How did Thomas Duff get so rich?
Thomas Duff, whose fortune comes from Tires, diversified , has an estimated net worth of $4.45 billion. That ranks 962nd on Forbes' live list of the world's billionaires. Citizenship: United States (based in Hattiesburg, Mississippi).
Since April 2025, when Forbes measured it at $3.3 billion, Thomas Duff's fortune has grown by $1.15 billion — an average of $22.84 per second, or $1.97M per day.
Thomas Duff's net worth was $1.2 billion on Forbes' 2019 list, so it has grown about 3.7x since then.
Thomas Duff net worth history (2019–2026)
| Year | Net worth | Change |
|---|---|---|
| 2026 | $4.5B | +$1.2B |
| 2025 | $3.3B | +$300M |
| 2024 | $3B | +$700M |
| 2023 | $2.3B | +$300M |
| 2022 | $2B | +$600M |
| 2021 | $1.4B | $0 |
| 2020 | $1.4B | +$200M |
| 2019 | $1.2B | — |
Ranked near Thomas Duff
| # | Name | Net worth | Today | Per second | Country |
|---|---|---|---|---|---|
| 959 | James DuffTires, diversified | $4.47B | — | $23.19/s | United States |
| 960 | Daniel SundheimHedge funds | $4.46B | — | $36.71/s | United States |
| 961 | Amos Hostetter JrCable television | $4.45B | −$3.13M(−0.1%) | $12.95/s | United States |
| 962 | Thomas DuffTires, diversified | $4.45B | — | $22.84/s | United States |
| 963 | Xu ShihuiSnacks, beverages | $4.45B | — | −$34.58/s | China |
| 964 | Ajay PiramalPharmaceuticals | $4.45B | +$42.85M(+1.0%) | $26.68/s | India |
| 965 | Cho Jyh-jerSemiconductors | $4.45B | −$84.28M(−1.9%) | $48.39/s | Taiwan |
Compare Thomas Duff with…
Thomas Duff net worth: FAQs
What is Thomas Duff's net worth?
Thomas Duff's net worth is $4.45 billion as of November 7, 2026, according to Forbes' real-time data, which makes Thomas Duff the 962nd richest person in the world.
How much does Thomas Duff make per second?
About $22.84 per second. Since April 2025, when Forbes measured it at $3.3 billion, Thomas Duff's fortune has grown by $1.15 billion — an average of $22.84 per second, or $1.97M per day.
How much does Thomas Duff make a day?
Roughly $1.97 million per day — that's $82,230 an hour and $1,371 a minute, based on average net worth growth.
How did Thomas Duff make their money?
The main sources of Thomas Duff's wealth are: Tires, diversified . Forbes classifies the fortune as self-made.
How long would it take an average person to earn Thomas Duff's net worth?
A typical full-time US worker earning about $63,128 a year would need roughly 70,565 years to earn Thomas Duff's fortune — without spending a cent.
How old is Thomas Duff?
Thomas Duff is 69 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, 2019–2026.
- Per-second figures are averages. See our methodology.