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BillionaireTracker

Mark Zuckerberg vs Sebastian Kulczyk: who is richer?

Mark Zuckerberg is richer, with a net worth of $209.7 billion versus Sebastian Kulczyk's $1.68 billion — a gap of $208.1 billion, or 125 times as much (as of November 7, 2026).

Mark Zuckerberg

Mark Zuckerberg

Source of wealth: Facebook

$209.7B

Sebastian Kulczyk

Source of wealth: Diversified

$1.68B

Side-by-side

Mark ZuckerbergSebastian Kulczyk
Net worth$209.7B$1.68B
World rank#5#2404
Makes per second−$124−$0.42
Makes per day−$10.69M−$35,935
Today+$1.72B−$459
Source of wealthFacebookDiversified
Age4245
CountryUnited StatesPoland

Net worth by year

YearMark ZuckerbergSebastian Kulczyk
2026$222B$1.8B
2025$216B$1.7B
2024$177B$1.6B
2023$64.4B$1.4B
2022$67.3B$1.4B
2021$97B$1.6B
2020$54.7B$1.3B
2019$62.3B$1.7B
2018$71B—
2017$56B—
2016$44.6B—
2015$33.4B—

Frequently asked questions

Who is richer, Mark Zuckerberg or Sebastian Kulczyk?

Mark Zuckerberg is richer, worth $209.7 billion compared with Sebastian Kulczyk's $1.68 billion. The difference is $208.1 billion.

Who makes more per second, Mark Zuckerberg or Sebastian Kulczyk?

Sebastian Kulczyk makes more: about −$0.42 per second versus −$124. Per day that's −$35,935 vs −$10.69M.

How many times richer is Mark Zuckerberg than Sebastian Kulczyk?

Mark Zuckerberg has about 125 times Sebastian Kulczyk's net worth.