James Duff vs Thomas Duff: who is richer?
James Duff is richer, with a net worth of $4.47 billion versus Thomas Duff's $4.45 billion — a gap of $17.6 million, or 1.00 times as much (as of November 7, 2026).
James Duff
Source of wealth: Tires, diversified
$4.47B
Made since you opened this page: $0.00
Thomas Duff
Source of wealth: Tires, diversified
$4.45B
Made since you opened this page: $0.00
Side-by-side
| James Duff | Thomas Duff | |
|---|---|---|
| Net worth | $4.47B | $4.45B |
| World rank | #959 | #962 |
| Makes per second | $23.19 | $22.84 |
| Makes per day | $2M | $1.97M |
| Today | $0 | $0 |
| Source of wealth | Tires, diversified | Tires, diversified |
| Age | 65 | 69 |
| Country | United States | United States |
Net worth by year
| Year | James Duff | Thomas Duff |
|---|---|---|
| 2026 | $4.5B | $4.5B |
| 2025 | $3.3B | $3.3B |
| 2024 | $3B | $3B |
| 2023 | $2.3B | $2.3B |
| 2022 | $2B | $2B |
| 2021 | $1.4B | $1.4B |
| 2020 | $1.4B | $1.4B |
| 2019 | $1.2B | $1.2B |
Frequently asked questions
Who is richer, James Duff or Thomas Duff?
James Duff is richer, worth $4.47 billion compared with Thomas Duff's $4.45 billion. The difference is $17.6 million.
Who makes more per second, James Duff or Thomas Duff?
James Duff makes more: about $23.19 per second versus $22.84. Per day that's $2M vs $1.97M.
How many times richer is James Duff than Thomas Duff?
James Duff has about 1.00 times Thomas Duff's net worth.