KSI has a net worth of $100 million as of 2026. The British YouTuber, boxer, and entrepreneur, born Olajide Olayinka Williams Olatunji, turned 32 this year and stands 6 feet tall. His fortune comes from three main pillars: sixteen years of YouTube content, a boxing career built on pay-per-view rivalries, and business ventures, including PRIME Hydration, the energy drink company he co-founded with former rival Logan Paul.
Quick Facts
| Category | Detail |
| Full Name | Olajide Olayinka Williams Olatunji |
| Known As | KSI |
| Net Worth | $100 million |
| Age | 32 (born June 19, 1993) |
| Height | 6 ft 0 in (183 cm) |
| Birthplace | Watford, Hertfordshire, England |
| Occupation | YouTuber, boxer, rapper, entrepreneur |
| Main Income Sources | YouTube, boxing, PRIME Hydration, music |
| Nationality | British-Nigerian |
Early Life and Biography
KSI was born on June 19, 1993, in Watford, Hertfordshire. His mother, Yinka, is from Islington, London, and his father, Jide, is from Ibadan, Nigeria, which gives KSI dual British-Nigerian heritage. He grew up alongside his younger brother, Deji Olatunji, who later became a YouTuber in his own right with millions of subscribers.
KSI attended Homefield Preparatory School before moving to Berkhamsted School, where he met Simon Minter, who later became his Sidemen groupmate as Miniminter. He struggled academically during his teenage years and chose to pursue YouTube full-time instead of continuing a traditional education path. That decision, made against the advice of most people around him, became the foundation of everything he built afterward. A similar commitment to online content helped FaZe Rug turn YouTube into the foundation of his career.
He uploaded his first YouTube video in 2008 as a school project, then started the channel that built his career in July 2009. His early content centered on FIFA gameplay commentary, and he became known for a loud, comedic delivery style that stood out from other gaming channels at the time. That early online audience eventually opened the door to a wider media career, much like the transition Michael Strahan made from football into television. He set a Guinness World Record for scoring 190 FIFA goals against a computer opponent in a single session in February 2013.
Career Timeline
KSI’s main YouTube channel now carries 17.8 million subscribers, while his music channel has grown even larger at 24.9 million. Combined, his channels have generated more than 16 billion views. He co-founded the Sidemen, a collective of British YouTubers who run several joint channels, and the group’s popularity extended his reach well beyond gaming content into comedy, challenges, and reaction videos.
His boxing career started in 2018 with a match against fellow YouTuber Joe Weller, a fight that came after a public poll where fans voted on whether the bout should happen. That fight generated far more attention than either creator expected, and it opened the door to the KSI vs. Logan Paul rivalry, which produced two pay-per-view events and turned into one of the most talked-about crossovers between YouTube and combat sports.
KSI also built a music career, releasing his debut studio album Dissimulation and multiple singles under labels including Atlantic and Warner Music Group. On the business side, he founded or co-founded several companies: PRIME Hydration, the snack brand Lunchly, XIX Vodka, Sidemen Clothing, and the Sides restaurant chain. He also holds the role of president at Ballerleague UK and became a shareholder in Dagenham & Redbridge football club in early 2026, adding sports ownership to his growing portfolio.
Net Worth Breakdown
Estimates from Celebrity Net Worth place KSI’s fortune at $100 million in 2026, a sharp rise from the $24 million figure he reported when Forbes ranked him second on its Top Creators list in 2023. That jump reflects how much PRIME Hydration’s growth has fed into his overall wealth. Some UK outlets, converting from equity and business holdings, have placed his fortune closer to £75 million, though the exact figure shifts depending on how PRIME’s private valuation is calculated at any given time.
The $100 million figure mostly reflects liquid assets and confirmed holdings. His equity stake in PRIME could be worth several hundred million dollars more if the company’s valuation continues climbing, though private company stakes are harder to pin down than public figures. That gap between reported net worth and potential equity value is common for creators who hold ownership in fast-growing private brands rather than salaried income alone.
Income Sources
YouTube ad revenue and sponsorships remain a steady base for KSI’s income, with reports from Sports Illustrated estimating he earns around $250,000 per branded video. Between September 2022 and September 2023 alone, he earned an estimated $25 million from his combined content and business activity.
PRIME Hydration is the biggest single driver of his recent wealth growth. Co-founded with Logan Paul in January 2022, the drink pulled in $250 million in revenue during its first year, then grew to more than $1.2 billion in annual sales by 2024. KSI and Logan Paul are promoters and equity holders rather than majority owners. The brand’s parent company, Congo Brands, based in Louisville, holds the controlling stake, while reports suggest KSI and Logan Paul each hold or share roughly 20 percent equity.
Boxing has added another income stream through pay-per-view splits and event purses, particularly from his fights against Logan Paul, which drew massive global viewership. His music catalog, YouTube ad revenue, and newer ventures like Lunchly and XIX Vodka round out a diversified portfolio that spreads his earnings across content, sport, food, and beverage.
Family
KSI keeps most of his romantic life private. He has confirmed being in a long-term relationship but has chosen not to name his partner publicly, saying in past interviews that he prefers to keep the people closest to him away from public scrutiny. Earlier public relationships included Seana Cuthbert from 2012 to 2014, Lois Sharpie in 2017, and Nia Pickering from 2018 to 2019.
His family remains close. He bought his parents’ former home from them and later gifted them a new house as a way of repaying them for raising him, and he has said his father retired early as a result of his financial support. His younger brother, Deji Olatunji, followed him into content creation and built his own large YouTube following, and the two frequently appear in each other’s projects.
Physical Stats
KSI stands 6 feet tall (183 cm), a detail that has mattered in his boxing career since he has competed against opponents of varying heights and reaches, including Logan Paul and Joe Weller. He maintains a muscular build that he attributes to boxing training camps ahead of each fight, and his weight has fluctuated depending on training cycles, typically sitting in the range that professional trainers set for his weight-class matchups.
