In a standard boxing match for professional bouts, there are typically 12 rounds. Each round lasts three minutes, with a one-minute rest period in between. This structure allows fighters to showcase their skills and strategies over an extended period. However, there are variations in the number of rounds depending on the bout's classification, such as championship fights, which usually consist of 12 rounds, while non-title bouts or amateur contests may have fewer rounds. The 12-round format is established to promote strategic fighting and endurance.