Thanos is a fictional character, and there is no official Marvel source that states the size of his genitals, so any specific number is just fan speculation or jokes.

What fans joke about

Online, people have treated ā€œhow big is Thanos’ ppā€ as a meme question rather than something with a serious or canon answer.

Common fan takes include:

  • Scaling it by his height (around 6'7"–8' depending on the source) and ending up with numbers roughly in the average-to-slightly-above-average human range.
  • Others joking that, as a cosmic warlord, it ā€œshouldā€ be comically huge or even adjustable with the Infinity Gauntlet.
  • Long parody posts where people ā€œdo the mathā€ using made‑up assumptions about actor sizes, then multiply by a factor to get a tongue‑in‑cheek answer.

None of these are official; they are fan humor threads, memes, or copypasta.

What is actually canon?

In official Marvel comics and MCU material:

  • Thanos’ height, weight, and powers are documented in handbooks and profiles.
  • His anatomy ā€œbelow the beltā€ is never quantified or discussed in any serious or technical way in canon sources.

So the accurate answer is: there is no canon measurement, only memes and joke calculations.

Why there’s no real answer

Because:

  1. It is irrelevant to the story and tone of the MCU/comics.
  2. Studios and publishers generally avoid explicit sexual details for mainstream superhero properties.
  3. The question survives as a running joke on forums, not as something Marvel ever intends to clarify.

If you see a precise number online, treat it as a meme, not as official Marvel lore. Information gathered from public forums or data available on the internet and portrayed here.