Boxing Weight Classes

There are 17 weight classes or weight divisions for professional male boxers (*) recognized by the Association Boxing Commissions (ABC) and the following sanctioning bodies; International Boxing Federation (IBF), International Boxing Organization (IBO), World Boxing Association (WBA), World Boxing Council (WBC) and World Boxing Organization (WBO). Below are the weight limits for each weight class and weight class names used by each of the boxing organizations.

Weight Classes or Divisions

  1. Mini Flyweight (ABC, IBF, WBO) Strawweight (IBO, WBC) Minimumweight (WBA)
    Up to and including 105 lbs or 47.627 kgs
  2. Junior Flyweight (IBF, WBO) Light Flyweight (ABC, IBO, WBA, WBC)
    Over 105 lbs or 47.627 kgs to 108 lbs or 48.988 kgs
  3. Flyweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 108 lbs or 48.988 kgs to 112 lbs or 50.802 kgs
  4. Super Flyweight (ABC, IBO, WBA, WBC) Junior Bantamweight (IBF, WBO)
    Over 112 lbs or 50.802 kgs to 115 lbs or 52.163 kgs
  5. Bantamweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 115 lbs or 52.163 kgs to 118 lbs or 53.524 kgs
  6. Super Bantamweight (ABC, IBO, WBA, WBC) Junior Featherweight (IBF, WBO)
    Over 118 lbs or 53.524 kgs to 122 lbs or 55.338 kgs
  7. Featherweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 122 lbs or 55.338 kgs to 126 lbs or 57.153 kgs
  8. Super Featherweight (ABC, IBO, WBA, WBC) Junior Lightweight (IBF, WBO)
    Over 126 lbs or 57.153 kgs to 130 lbs or 58.967 kgs
  9. Lightweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 130 lbs or 58.967 kgs to 135 lbs or 61.235 kgs
  10. Super Lightweight (ABC, WBA, WBC) Junior Welterweight (IBF, WBO) Light Welterweight (IBO)
    Over 135 lbs or 61.235 kgs to 140 lbs or 63.503 kgs
  11. Welterweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 140 lbs or 63.503 kgs to 147 lbs or 66.678 kgs
  12. Super Welterweight (ABC, WBA, WBC) Junior Middleweight (IBF, WBO) Light Middleweight (IBO)
    Over 147 lbs or 66.678 kgs to 154 lbs or 69.853 kgs
  13. Middleweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 154 lbs or 69.853 kgs to 160 lbs or 72.575 kgs
  14. Super Middleweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 160 lbs or 72.575 kgs to 168 lbs or 76.204 kgs
  15. Light Heavyweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 168 lbs or 76.204 kgs to 175 lbs or 79.379 kgs
  16. Cruiserweight (ABC, IBF, IBO, WBA, WBC) Junior Heavyweight (WBO)
    Over 175 lbs or 79.379 kgs to 200 lbs or 90.719 kgs
  17. Heavyweight (ABC, IBF, IBO, WBA, WBC, WBO)
    Over 200 lbs or 90.719 kgs to unlimited

Note: 1 kg equals 2.20462262185 lbs

Note: Theoretically only the maximum weight for each weight class or division is the limit. For example a boxer who only weighted 115 lbs could fight in a welterweight bout against a true welterweight weighting 147 lbs but it just wouldn't happen now days because the commissions would not allow it due to the potential liability of the lighter fighter getting seriously injuried by the over powered heavier fighter.

(*) Weight classes for female boxers in the ABC are the same used by men. In other sanctioning bodies such as the IFBA, WBA, WBC and WIBF weight classes for women differ.

For world champions by weight division see boxing rankings.