Each round in professional boxing typically lasts 3 minutes with a 1-minute rest period between rounds. Championship and title fights usually consist of 12 rounds of 3 minutes each. Non-title professional fights may have 4, 6, 8, or 10 rounds. In amateur boxing, rounds are shorter, generally lasting 2 minutes with fewer rounds (often 3 to 4 rounds). Women's professional boxing rounds are commonly 2 minutes long with up to 10 or 12 rounds for championship fights. Summary of boxing round lengths:

• Professional men's boxing rounds: 3 minutes each, up to 12 rounds.
• Amateur boxing rounds: 2 minutes each, fewer rounds.
• Women's professional boxing rounds: 2 minutes each.
• Rest period between rounds: 1 minute.

This structure balances athlete endurance, safety, and strategic competition.