All Might’s official listed weight in most fan and data-book style profiles is around 255 kg (about 562 pounds) in his muscular hero form. There is no equally solid “official” number for his skinny form, but it is clearly far lower and visually emaciated.

Quick Scoop

  • In muscular All Might form: about 255 kg / 562 lb.
  • Height in that form is usually given as around 220–225 cm (about 7'3") , which makes that weight extreme but within the usual over-the-top anime range.
  • In his skinny form, his weight is never clearly specified in canon, and any exact number is fan speculation.

Where the number comes from

Most discussions about how much does All Might weigh trace back to character stat sheets, guide-like materials, and community breakdowns that converge on 255 kg / 562.2 lb for his prime, buff state. Fans often compare him with real-world giants like Shaquille O’Neal or elite bodybuilders to argue whether that mass is “realistic” for a hyper-muscular 7’+ hero.

Is that weight realistic?

From a realism standpoint:

  • Fans point out that even the heaviest, very tall athletes rarely approach 255 kg, making All Might’s mass exaggerated even by strongman standards.
  • Others counter that dense muscle plus his superhuman build could plausibly justify a number in that range within the logic of an over-the-top superhero manga.

So, in universe, the 562 lb figure is treated as his “whopping” hero-form weight, while debates about realism are mostly a fun forum topic rather than a strict biological analysis.

TL;DR: For anyone asking “how much does All Might weigh,” the commonly accepted answer is about 255 kg (562 lb) in his muscular form , with his skinny form left unspecified and left to fan speculation.

Information gathered from public forums or data available on the internet and portrayed here.