Mark Zuckerberg vs Joe Kiani: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus Joe Kiani's $1.25 billion — a gap of $208.5 billion, or 167 times as much (as of November 7, 2026).

Mark Zuckerberg
Source of wealth: Facebook
$209.7B
Joe Kiani
Source of wealth: Medical devices
$1.25B
Side-by-side
| Mark Zuckerberg | Joe Kiani | |
|---|---|---|
| Net worth | $209.7B | $1.25B |
| World rank | #5 | #2956 |
| Makes per second | −$124 | −$0.93 |
| Makes per day | −$10.69M | −$80,353 |
| Today | +$1.72B | +$301,470 |
| Source of wealth | Medical devices | |
| Age | 42 | 62 |
| Country | United States | United States |
Net worth by year
| Year | Mark Zuckerberg | Joe Kiani |
|---|---|---|
| 2026 | $222B | $1.2B |
| 2025 | $216B | $1.3B |
| 2024 | $177B | $1.1B |
| 2023 | $64.4B | $1.3B |
| 2022 | $67.3B | — |
| 2021 | $97B | — |
| 2020 | $54.7B | — |
| 2019 | $62.3B | — |
| 2018 | $71B | — |
| 2017 | $56B | — |
| 2016 | $44.6B | — |
| 2015 | $33.4B | — |
Frequently asked questions
Who is richer, Mark Zuckerberg or Joe Kiani?
Mark Zuckerberg is richer, worth $209.7 billion compared with Joe Kiani's $1.25 billion. The difference is $208.5 billion.
Who makes more per second, Mark Zuckerberg or Joe Kiani?
Joe Kiani makes more: about −$0.93 per second versus −$124. Per day that's −$80,353 vs −$10.69M.
How many times richer is Mark Zuckerberg than Joe Kiani?
Mark Zuckerberg has about 167 times Joe Kiani's net worth.