Sergey Brin vs Cai Dongchen: who is richer?
Sergey Brin is richer, with a net worth of $218.1 billion versus Cai Dongchen's $3.33 billion — a gap of $214.8 billion, or 66 times as much (as of November 7, 2026).
Sergey Brin
Source of wealth: Google
$218.1B
Made since you opened this page: $0.00
Cai Dongchen
Source of wealth: Pharmaceuticals
$3.33B
Made since you opened this page: $0.00
Side-by-side
| Sergey Brin | Cai Dongchen | |
|---|---|---|
| Net worth | $218.1B | $3.33B |
| World rank | #4 | #1248 |
| Makes per second | $1,585 | $26.28 |
| Makes per day | $136.9M | $2.27M |
| Today | +$1.58B | −$46.85M |
| Source of wealth | Pharmaceuticals | |
| Age | 53 | 73 |
| Country | United States | China |
Net worth by year
| Year | Sergey Brin | Cai Dongchen |
|---|---|---|
| 2026 | $237B | $3.9B |
| 2025 | $138B | $2B |
| 2024 | $110B | $2.4B |
| 2023 | $76B | $3B |
| 2022 | $107B | $3.2B |
| 2021 | $89B | $2.6B |
| 2020 | $49.1B | $2.3B |
| 2019 | $49.8B | $2.4B |
| 2018 | $47.5B | $2.9B |
| 2017 | $39.8B | — |
| 2016 | $34.4B | — |
| 2015 | $29.2B | — |
Frequently asked questions
Who is richer, Sergey Brin or Cai Dongchen?
Sergey Brin is richer, worth $218.1 billion compared with Cai Dongchen's $3.33 billion. The difference is $214.8 billion.
Who makes more per second, Sergey Brin or Cai Dongchen?
Sergey Brin makes more: about $1,585 per second versus $26.28. Per day that's $136.9M vs $2.27M.
How many times richer is Sergey Brin than Cai Dongchen?
Sergey Brin has about 66 times Cai Dongchen's net worth.