Here are the weight classes according to the major professional organizations like the WBC, WBA, IBF, and WBO:
- Minimumweight/Strawweight: 105 lbs (47.6 kg)
- Light Flyweight/Junior Flyweight: 108 lbs (49 kg)
- Flyweight: 112 lbs (50.8 kg)
- Super Flyweight/Junior Bantamweight: 115 lbs (52.2 kg)
- Bantamweight: 118 lbs (53.5 kg)
- Super Bantamweight/Junior Featherweight: 122 lbs (55.3 kg)
- Featherweight: 126 lbs (57.2 kg)
- Super Featherweight/Junior Lightweight: 130 lbs (59 kg)
- Lightweight: 135 lbs (61.2 kg)
- Super Lightweight/Junior Welterweight: 140 lbs (63.5 kg)
- Welterweight: 147 lbs (66.7 kg)
- Super Welterweight/Junior Middleweight: 154 lbs (69.9 kg)
- Middleweight: 160 lbs (72.6 kg)
- Super Middleweight: 168 lbs (76.2 kg)
- Light Heavyweight: 175 lbs (79.4 kg)
- Cruiserweight: 200 lbs (90.7 kg)
- Heavyweight: Over 200 lbs (Over 90.7 kg)
For the cruiserweight class, the WBC has established the “Bridgerweight” category, which ranges from 200 to 224 lbs (90.7 to 101.6 kg), and then the heavyweight class begins from 224 lbs.
Please note that the amateur boxing divisions and the Olympic Games have slightly different weight classifications.
Men’s Amateur Boxing Weight Classes:
- Light Flyweight: up to 108 lbs (49 kg)
- Flyweight: up to 114 lbs (52 kg)
- Bantamweight: up to 123 lbs (56 kg)
- Lightweight: up to 132 lbs (60 kg)
- Light Welterweight: up to 141 lbs (64 kg)
- Welterweight: up to 152 lbs (69 kg)
- Middleweight: up to 165 lbs (75 kg)
- Light Heavyweight: up to 178 lbs (81 kg)
- Heavyweight: up to 201 lbs (91 kg)
- Super Heavyweight: over 201 lbs (over 91 kg)
Women’s Amateur Boxing Weight Classes:
- Light Flyweight: up to 106 lbs (48 kg)
- Flyweight: up to 112 lbs (51 kg)
- Bantamweight: up to 119 lbs (54 kg)
- Featherweight: up to 125 lbs (57 kg)
- Lightweight: up to 132 lbs (60 kg)
- Light Welterweight: up to 141 lbs (64 kg)
- Welterweight: up to 152 lbs (69 kg)
- Middleweight: up to 165 lbs (75 kg)
- Light Heavyweight: up to 178 lbs (81 kg)
- Heavyweight: up to 189 lbs (86 kg)
Please note that these divisions can vary slightly between different amateur boxing organizations. Always check the current rules for the specific competition or organization.
Weight classes recognized by the UFC (Ultimate Fighting Championship) are:
Strawweight
- Women: up to 115 lbs (52.16 kg)
- Men: Not recognized in UFC
Flyweight
- Men: up to 125 lbs (56.7 kg)
- Women: up to 125 lbs (56.7 kg)
Bantamweight
- Men: up to 135 lbs (61.23 kg)
- Women: up to 135 lbs (61.23 kg)
Featherweight
- Men: up to 145 lbs (65.77 kg)
- Women: up to 145 lbs (65.77 kg)
Lightweight
- Men: up to 155 lbs (70.31 kg)
- Women: Not recognized in UFC
Welterweight
- Men: up to 170 lbs (77.11 kg)
- Women: Not recognized in UFC
Middleweight
- Men: up to 185 lbs (83.91 kg)
- Women: Not recognized in UFC
Light Heavyweight
- Men: up to 205 lbs (93.0 kg)
- Women: Not recognized in UFC
Heavyweight
- Men: up to 265 lbs (120.2 kg)
- Women: Not recognized in UFC