Mark Zuckerberg vs William Koch: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus William Koch's $1.95 billion — a gap of $207.8 billion, or 108 times as much (as of November 7, 2026).
Mark Zuckerberg
Source of wealth: Facebook
$209.7B
William Koch
Source of wealth: Oil, investments
$1.95B
Side-by-side
| Mark Zuckerberg | William Koch | |
|---|---|---|
| Net worth | $209.7B | $1.95B |
| World rank | #5 | #2112 |
| Makes per second | −$124 | −$0.97 |
| Makes per day | −$10.69M | −$83,752 |
| Today | +$1.72B | $0 |
| Source of wealth | Oil, investments | |
| Age | 42 | 86 |
| Country | United States | United States |
Net worth by year
| Year | Mark Zuckerberg | William Koch |
|---|---|---|
| 2026 | $222B | $2B |
| 2025 | $216B | $2B |
| 2024 | $177B | $2B |
| 2023 | $64.4B | $1.6B |
| 2022 | $67.3B | $1.6B |
| 2021 | $97B | $1.6B |
| 2020 | $54.7B | $1.5B |
| 2019 | $62.3B | $1.8B |
| 2018 | $71B | $1.7B |
| 2017 | $56B | $1.3B |
| 2016 | $44.6B | $1.9B |
| 2015 | $33.4B | $3B |
Frequently asked questions
Who is richer, Mark Zuckerberg or William Koch?
Mark Zuckerberg is richer, worth $209.7 billion compared with William Koch's $1.95 billion. The difference is $207.8 billion.
Who makes more per second, Mark Zuckerberg or William Koch?
William Koch makes more: about −$0.97 per second versus −$124. Per day that's −$83,752 vs −$10.69M.
How many times richer is Mark Zuckerberg than William Koch?
Mark Zuckerberg has about 108 times William Koch's net worth.