When you hear the name Mark Williams, your brain probably jumps to one of three very different guys. Maybe you're thinking of the massive center for the Phoenix Suns (formerly of the Charlotte Hornets), the legendary Welsh snooker player, or perhaps the guy who played Arthur Weasley in the Harry Potter movies. Depending on which one you're looking for, the answer to how tall is Mark Williams ranges from "tall for a human" to "legitimate giant."
In the world of professional sports, height is often a bit of a moving target. Teams lie. Players grow. Shoes add an inch. But when we look at the Mark Williams dominating the paint in the NBA right now, the numbers are pretty staggering.
Mark Williams: The NBA Giant
The most common reason people search for this height is to understand the physical profile of the NBA center. Mark Williams stands at a massive 7 feet 1 inch (7'1"). That’s about 216 centimeters for those of you on the metric system.
But here’s the thing: in the NBA, height is only half the story.
What makes Mark Williams a defensive nightmare isn't just that he's 7'1". It's his 7-foot-6.5-inch wingspan. Think about that for a second. When he stands still and reaches up, his standing reach is 9 feet 9 inches. Since an NBA rim is exactly 10 feet high, he basically only has to go on his tiptoes to touch the net.
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Honestly, it’s one of the most impressive physical profiles to enter the league in the last decade. During his draft process, scouts noted that his standing reach was the second-tallest recorded at the NBA Combine in 20 years, trailing only the 7'5" Tacko Fall.
Why the 7'1" Listing Matters
In 2026, the NBA has become much more strict about "official" heights. Gone are the days when a 6'10" guy could call himself 7 feet to sound more intimidating. Williams was officially measured at 7'0" without shoes at the combine, and he's usually listed at 7'1" in game gear.
Since being traded to the Phoenix Suns, his role has shifted, but his height remains his greatest asset. He’s currently averaging over 8 rebounds and a solid block per game, purely because you can't teach that kind of length. You've either got it, or you don't. And he definitely does.
The Other Famous Mark Williams
If you aren't a basketball fan, you might be looking for a different Mark Williams. It’s a surprisingly popular name for famous people.
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- Mark Williams (Snooker Player): The three-time World Champion from Wales is significantly shorter than his NBA namesake. He stands about 6 feet 1 inch (185 cm). He's often called "The Welsh Potting Machine," and at 50 years old, he’s still competing at the highest level.
- Mark Williams (Actor): The man who brought Arthur Weasley to life is also roughly 6 feet 1 inch. If you’ve seen him in Father Brown, you might notice he looks quite tall compared to the rest of the cast, but he's nowhere near the "big man" status of a pro athlete.
It’s kinda funny how a name can belong to such a wide range of body types. You’ve got a guy who needs a custom-built bed and a guy who fits perfectly into a normal British sedan.
Breaking Down the NBA Stats
If you're following the NBA's 2025-26 season, Williams' height has been a major talking point in the Suns' rotation. After his move from Charlotte, there were questions about how a traditional 7'1" center would fit in a faster offense.
He’s proving the skeptics wrong. Basically, height provides a "safety net" for a team. Even if a guard gets blown by on the perimeter, having a 7'1" wall waiting at the rim changes how opponents shoot. Statistics show that players shoot significantly lower percentages when Williams is within five feet of the basket.
- Field Goal Percentage: He’s shooting around 65.6% this season.
- Rebounding: He pulls down roughly 8.3 boards a game.
- The "Reach" Factor: His wingspan allows him to grab "out-of-area" rebounds that smaller centers just can't touch.
Understanding the Physical Limits
Is there a downside to being 7'1"? Sure. Mobility can be an issue. In the modern NBA, big men are often "switched" onto small, fast guards. While Williams has decent feet for his size, he’s never going to be as fast as a 6'3" point guard.
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Injuries are also a concern for guys this tall. We saw him miss significant time during the 2023-24 season with back issues. When you're that long, your frame puts a lot of stress on your spine and joints. Staying healthy is the only thing that could stop him from being a perennial All-Defensive team candidate.
Real-World Height Comparison
To put 7 feet 1 inch into perspective:
- The average American male is 5'9".
- Mark Williams is a full 16 inches taller than the average guy.
- He would have to duck under almost every standard doorway in the UK or US, which are typically 6'8".
If you're looking to track his progress or see if he’s grown any more (unlikely at age 24, but it happens!), keep an eye on official NBA roster updates. For now, 7'1" is the definitive answer for the athlete, while 6'1" covers the actor and the snooker legend.
Actionable Insight: If you're betting on player props or playing fantasy basketball, always check the "active" status for Williams. His height makes him a double-double machine, but his history of back issues means he's a "high-reward, high-risk" asset. For fans of the actor or snooker player, their "height" is more about screen presence than stats—6'1" is tall enough to command a room without needing a custom-made ceiling.