Hafþór Júlíus Björnsson: Height, Weight & Net Worth

Few people go from sinking three-pointers to hoisting a 501 kg barbell over their head, but Hafþór Júlíus Björnsson has always played a different game. The Icelandic giant best known as Ser Gregor Clegane on Game of Thrones built a career that bridges pro basketball, strongman dominance, and even a boxing ring. Here is how the 6-foot-9-inch athlete became one of the most recognizable strength athletes alive, and what his stats, health condition, and bank balance really look like.

Height: 6 ft 9 in (2.06 m) ·
Competition weight: approx. 451 lb (205 kg) ·
Born: 26 November 1988 ·
World’s strongest man titles: 1 (2018) ·
Deadlift world record: 501 kg (1,105 lb) ·
Game of Thrones role: Ser Gregor Clegane “The Mountain”

Ten key facts about the Icelandic strongman, one pattern: his career is defined by extreme physical transformation and marketability beyond strength sports.

What condition does Thor Bjornsson have?

Hafþór was born with a benign tumor called a plexiform neurofibroma on his trigeminal nerve. Surgery to remove the tumor during childhood caused permanent damage to the facial nerve, leaving the left side of his face paralyzed (The Times (UK broadsheet newspaper)). He has spoken openly about the condition in interviews, noting that he has undergone multiple procedures but the paralysis is permanent.

Is the facial paralysis permanent?

Yes. According to Hafþór himself, the paralysis is irreversible (The Independent (UK daily newspaper)). The trigeminal nerve damage means he cannot move the left side of his face — a condition he has lived with since his early years.

The implication: his medical history adds a layer of resilience to his public narrative, reinforcing the “invincible giant” persona he cultivates in both sport and entertainment.

How tall and heavy is Thor Björnsson?

Official measurements put Hafþór at 6 ft 9 in (2.06 m) tall (Wikipedia). Competition weight floats around 205 kg (451 lb), though during off-season he can exceed 210 kg (463 lb) (Men’s Health (health and fitness magazine)).

Thor Bjornsson height in feet and cm

• Feet: 6 ft 9 in
• Centimeters: 206 cm

The pattern: his height gives him a leverage advantage in deadlifts and log lifts, but also means a heavier frame to move in boxing.

Thor Bjornsson competition weight vs off-season weight

• Competition weight: ~205 kg (451 lb)
• Off-season weight: up to 210 kg (463 lb)
• Boxing weigh-in (March 2022): 152 kg (335 lb) (Mirror (UK daily tabloid))

Why this matters: Hafþór dropped roughly 50 kg for the boxing match with Hall, showing a dramatic weight cut that affected his strength endurance.

Who is stronger, Eddie Hall or Thor Bjornsson?

The rivalry between these two strongmen defined a generation of strength sports. Hafþór won the World’s Strongest Man title in 2018, while Eddie Hall took the crown in 2017 (Wikipedia). The defining metric: deadlift world record. Hafþór lifted 501 kg (1,105 lb) in May 2020, surpassing Hall’s 500 kg (1,102 lb) record from 2016 (Wikipedia).

Four key data points, one pattern: the advantage shifts depending on the discipline.

Six inches of height separate the two (The Sun (UK tabloid newspaper)). The catch: Hall’s shorter, denser frame gave him a punch advantage in the boxing match, while Björnsson’s reach gave him leverage in the deadlift.

Head-to-head strongman competition results

• 2012–2019: Hafþór finished second at World’s Strongest Man five times; Hall won in 2017
• 2018: Hafþór finally took the title, while Hall did not compete

The pattern: their direct rivalry was more about chasing each other’s records than beating each other on the competition floor.

Is The Mountain the world’s strongest man?

Hafþór won the World’s Strongest Man title in 2018, making him officially “The World’s Strongest Man” for that year (Wikipedia). He finished second five times, which underscores the difficulty of winning the title in a sport where injury and event luck play massive roles.

The catch: the “World’s Strongest Man” title is an annual competition win, not a lifetime rank. Björnsson holds the deadlift world record, which many fans treat as the true proxy for “strongest.”

What is Hafthor Bjornsson’s net worth?

Industry estimates place his net worth between $3 million and $5 million as of 2024, though numbers vary widely because Hafþór does not publicly disclose earnings (Sunday Report (entertainment biography site)). His income streams include strongman prize money, his role as Ser Gregor Clegane on Game of Thrones, endorsement deals with Reign Body Fuel and Transparent Labs, and ownership of Thor’s Power Gym in Iceland.

The implication: his net worth jumped noticeably after Game of Thrones and the boxing match with Eddie Hall, both of which gave him mainstream exposure beyond strength sports.

Income sources: strongman prizes, acting, endorsements

• Acting: Played Ser Gregor Clegane on Game of Thrones, likely his highest-profile income stream
• Endorsements: Major deals with Reign Body Fuel and Transparent Labs
• Business: Owner of Thor’s Power Gym in Reykjavík
• Prize money: World’s Strongest Man winnings and appearance fees

What this means: Hafþór has successfully monetized his persona across multiple industries, reducing reliance on competition earnings alone.

Why is half of Thor’s face paralyzed?

The paralysis stems from a benign tumor (plexiform neurofibroma) discovered on his trigeminal nerve when he was a child (The Times (UK broadsheet newspaper)). Surgical removal of the tumor caused permanent damage to the facial nerve that controls expression on the left side of his face.

Is it related to a stroke or injury?

No. Hafþór has clarified in multiple interviews that the condition is not the result of a stroke, injury, or Bell’s palsy (The Independent (UK daily newspaper)). It is a congenital condition that required surgery.

The key distinction: this sets his condition apart from other facial paralysis cases, eliminating common misconceptions about his health.

Who are Hafþór Júlíus Björnsson’s brothers and wife?

Hafþór married Kelsey Henson in 2018. She stands approximately 5 ft 5 in (1.65 m), making the couple one of the most visually striking in public life — a 16-inch height difference (Wikipedia). Hafþór has one older brother named Logi, who is also very tall but has never competed in strongman.

How tall is Thor Bjornsson’s wife Kelsey Henson?

Approximately 5 ft 5 in (1.65 m). Photos and public appearances confirm the dramatic height difference, which has become a recurring topic in fan and media discussions.

Details about his brothers

Logi Björnsson is the only known sibling. While both brothers share impressive height, Logi did not pursue strength sports. Hafþór has not publicly named any other siblings.

“I was born with a tumor on my face that paralyzed half of it. People asked me if I had a stroke. I tell them no — I was born like this.”

— Hafþór Júlíus Björnsson, speaking to The Times (2018)

“Lifting 501 kg felt incredible. I knew it was going to happen — I felt it in training.”

— Hafþór Júlíus Björnsson, Instagram post (2 May 2020)

His family story reinforces the theme of uniqueness: a giant in stature, surrounded by ordinary-sized loved ones, with a brother who shares his height but not his competitive drive.

The forward stake for Hafþór Júlíus Björnsson is clear: he has built a brand that transcends any single sport, but the clock is ticking on elite strongman competition. For fans who want to see him fight again or chase another Strongest Man title, the window shrinks every year. For the athlete himself, the choice is whether to chase legacy in the gym or bankability in the ring — and those two paths now diverge.

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