KSI Net Worth Details

KSI is one of the most famous internet stars in the world. He started making videos in his bedroom and now sells out boxing arenas.

In this article, you will know KSI’s net worth, career earnings, career overview, stats, relationship, and more.

KSI’s Biography

Fact Details
Full Name Olajide Olayinka Williams Olatunji
Date of Birth June 19, 1993
Age 32
Education Berkhamsted School (Dropped out of Sixth Form)
Nationality British
Height 6 ft 0 in (183 cm)
Weight ~180-190 lbs (Cruiserweight)
Turned Pro 2019
Net Worth $100 Million (Estimated)
Salary/Career Earnings $25 Million+ (Annually)
Wife/Partner Unnamed Girlfriend (Relationship since 2017)
Instagram Profile @ksi
Twitter Profile @KSI

Early Career

KSI began his career on YouTube in 2009. He used the name “KSIOlajideBT” and posted videos of himself playing the FIFA video game. His funny commentary and reactions made him very popular with young viewers.

He dropped out of Sixth Form college to focus on making videos full-time. His parents were angry at first because they wanted him to finish school. He eventually proved them wrong when his channel started making a lot of money.

He later formed a group called the Sidemen in 2013 with six other British YouTubers. They made challenges and gaming videos together.

This group helped him gain even more fans around the world. He also started making comedy skits and vlogs. His channel grew very fast, and he became a millionaire before he turned 21.

He used his online fame to start a music career and released rap songs. This early success set the foundation for his future business empire.

Professional Career

KSI moved from gaming to boxing and business. He fought fellow YouTuber Joe Weller in an amateur match in 2018 and won.

This fight started the trend of “influencer boxing”. He then fought American YouTuber Logan Paul twice. Their second fight was a professional match, and KSI won by split decision.

This victory made him a big name in the sports world. He created his own boxing promotion company called Misfits Boxing to host fights for other influencers.

He also launched a drink company called Prime Hydration with his former rival Logan Paul. The drink became famous instantly and sold millions of bottles. Fans waited in long lines just to buy it.

Outside of business, he released hit music albums like Dissimulation and All Over the Place. His songs reached the top of the UK charts.

He continues to make videos with the Sidemen while managing his many businesses. He proves that a YouTuber can succeed in many different industries.

KSI’s Net Worth Details

As of 2026, KSI’s net worth is approximately $100 million.

Disclaimer: We estimate these net worth figures using publicly available information from press releases, news reports, online databases, industry experts, and insiders. Amounts shown are estimates and do not account for private taxes, expenses, or investment losses.

Fight Purses

Opponent Result Estimated Purse (Earnings)
Logan Paul Win $900,000 (Guaranteed) + PPV Share ($3M+ Total) 
Swarmz & Pineda Win (x2) ~$1 Million (Combined) 
FaZe Temperrr Win ~$3 Million 
Joe Fournier No Contest ~$3 Million 
Tommy Fury Loss Estimated $3 Million – $5 Million+

Career Earnings

Year Estimated Net Worth Main Income Sources
2020 £15–20 Million YouTube, Sidemen, Music 
2022 £30–35 Million Boxing, Music Tours, Merchandise 
2024 £50–60 Million Prime Hydration, Misfits Boxing 
2026 £75–85 Million ($100M) Prime Equity, Brand Deals, Investments

Endorsements

KSI makes a lot of money from brands and his own companies. His biggest success is Prime Hydration, which he owns with Logan Paul.

This company is worth billions, and his share is very valuable. He also owns a vodka brand called XIX Vodka and a restaurant chain called Sides. He has a cereal brand called Best Cereal.

In the past, he worked with companies like G Fuel and JD Sports. These deals add millions to his bank account every year.

Career Stats

Stat Category Record/Details
Professional Record 4 Wins – 1 Loss – 1 No Contest 
Knockouts (KOs) 3
Stance Orthodox 
Division Cruiserweight
Total Pro Fights 6
Key Wins Logan Paul, FaZe Temperrr, Swarmz, Luis Pineda
Key Losses Tommy Fury

FAQs

1. What does the abbreviation KSI represent?

The famous acronym stands for Knowledge, Strength, and Integrity. He chose this unique name during his early gaming career and uses these three core values to guide his professional decisions.

2. How much is Olatunji currently worth?

His total financial value stands at approximately $100 million. He built this massive fortune through his drink company, boxing events, music tours, and massive property investments.

3. Who is the girlfriend of the boxer?

He has been in a committed relationship with an unknown woman since 2017. He strictly keeps her identity secret from the public to maintain a normal and private life.

4. How tall is the content creator Olatunji?

The British internet celebrity stands exactly 6 feet tall, which equals 183 centimeters. He often uses this height advantage effectively when competing against shorter opponents in the boxing ring.

5. Who was the first professional opponent of KSI?

He fought Logan Paul in his professional boxing debut in November 2019. He won the match by split decision after six rounds of intense action at the Staples Center arena.

Sazedul Islam Saju
Sazedul Islam Saju is an MMA and boxing content writer at Surprise Sports specializing in fighter biographies, UFC analysis, boxing coverage, fight breakdowns, and combat sports history. He creates research-driven content covering professional fighters, championship bouts, career achievements, match records, and major events from the world of MMA and boxing.