Mark Zuckerberg vs John Mars: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus John Mars' $50.35 billion — a gap of $159.4 billion, or 4.2 times as much (as of November 7, 2026).
Mark Zuckerberg
Source of wealth: Facebook
$209.7B
John Mars
Source of wealth: Candy, pet food
$50.35B
Made since you opened this page: $0.00
Side-by-side
| Mark Zuckerberg | John Mars | |
|---|---|---|
| Net worth | $209.7B | $50.35B |
| World rank | #5 | #35 |
| Makes per second | −$124 | $153 |
| Makes per day | −$10.69M | $13.24M |
| Today | +$1.72B | $0 |
| Source of wealth | Candy, pet food | |
| Age | 42 | 91 |
| Country | United States | United States |
Net worth by year
| Year | Mark Zuckerberg | John Mars |
|---|---|---|
| 2026 | $222B | $49.1B |
| 2025 | $216B | $42.6B |
| 2024 | $177B | $38.5B |
| 2023 | $64.4B | $38.3B |
| 2022 | $67.3B | $31.7B |
| 2021 | $97B | $31.3B |
| 2020 | $54.7B | $24.7B |
| 2019 | $62.3B | $23.9B |
| 2018 | $71B | $23.6B |
| 2017 | $56B | $27B |
| 2016 | $44.6B | $23.4B |
| 2015 | $33.4B | $26.6B |
Frequently asked questions
Who is richer, Mark Zuckerberg or John Mars?
Mark Zuckerberg is richer, worth $209.7 billion compared with John Mars' $50.35 billion. The difference is $159.4 billion.
Who makes more per second, Mark Zuckerberg or John Mars?
John Mars makes more: about $153 per second versus −$124. Per day that's $13.24M vs −$10.69M.
How many times richer is Mark Zuckerberg than John Mars?
Mark Zuckerberg has about 4.2 times John Mars' net worth.