Conor McGregor is officially listed as a lightweight in the UFC, which is the 155 lb (70 kg) division.

Quick Scoop: What weight class is Conor McGregor?

  • In the UFC’s own records, McGregor is described as a lightweight fighter.
  • The lightweight limit is 155 lb, and he has weighed in around 154.5–156 lb for his recent lightweight bouts.
  • He is a former champion in two divisions: featherweight (145 lb) and lightweight (155 lb).
  • He has also competed at welterweight (170 lb), for example against Donald “Cowboy” Cerrone at UFC 246.

So if you’re asking “what weight class is Conor McGregor” right now in official terms: he’s a UFC lightweight, with a legacy of fighting across featherweight, lightweight, and welterweight.

Mini breakdown of his UFC weight classes

  • Featherweight (145 lb) – Early UFC run and where he first became champion.
  • Lightweight (155 lb) – Second belt; current official divisional listing.
  • Welterweight (170 lb) – Selected fights, including the quick win over Cerrone.

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