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List of Boxing Weight Classes

Mini Flyweight/Strawweight/Minimumweight

    The is the lightest boxing weight at the professional level at 105 pounds, or 47.627 kilograms. The IBF and WBO call this the Mini Flyweight Division. The WBC refers to it as the Strawweight and the WBA calls it Minimumweight.

Junior Flyweight/Light Flyweight

    Next is the 108-lb. or 48.988-kg. division -- called Junior Flyweight (WBO, IBF) or the Light Flyweight (WBA, WBC). In the Olympics, the lightest class is Light Flyweight with a 46-to-49-kg. limit.

Flyweight

    This is the universally recognized name for the 112-lb. class, or 50.802-kg. In the Olympics, this class limit is 52 kg.

Super Flyweight/Junior Bantamweight

    The next highest professional class is 115 lbs. or 52.163 kg. -- called Super Flyweight (WBA, WBC) or Junior Bantamweight (IBF and WBO).

Bantamweight

    This is the universally recognized name for the 118-lb. or 53.525-kg. class. In the Olympics, this class limit is 54 kg.

Super Bantamweight/Light Featherweight

    The next highest professional level is 122 lbs. or 55.225 kg. -- called the Super Bantamweight (WBA, WBC) or Light Featherweight (IBF, WBO).

Featherweight

    This is the universally recognized name for the 126-lb. or 57.153-kg. professional class.

Super Featherweight/Junior Lightweight

    The next heaviest professional weight is 130 lbs. or 58.967 kg. -- called Super Featherweight (WBA/WBC) or Junior Lightweight (WBO/IBF).

Lightweight

    This is the universally recognized name for the 135-lb. or 61.235-kg. class. In the Olympics, this class limit is 60 kg.

Super Lightweight/Junior Welterweight

    The next heaviest class is 140 lbs. or 63.503 kg. -- called Super Lightweight (WBA/WBC) or Junior Welterweight (WBO/IBF). In the Olympics, the Light Welterweight class limit is 64 kg.

Welterweight

    This is the universally recognized name for the 147-lb. or 66.678-kg. class. In the Olympics, its limit is 69 kg.

Super Welterweight/Junior Middleweight

    The next heaviest professional weight is 154 lbs. or 69.853 kg. -- called the Super Welterweight (WBA/WBC) or Junior Middleweight (WBO/IBF) class.

Middleweight

    This is the universally recognized name for the 160-lb. or 72.574-kg. class. In the Olympics, its weight limit is 75 kg.

Super Middleweight

    This professional class is 168 lbs. or 76.203 kg.

Light Heavyweight

    This class is 175 lbs. or 79.378 kg. In the Olympics, its limit is 81 kg.

Cruiserweight/Junior Heavyweight

    The second heaviest class is 200 lbs. or 90.892 kg. -- called Cruiserweight (WBA/WBC/IBF) or Junior Heavyweight (WBO). In the Olympics, 91 kg. is the Heavyweight class limit.

Heavyweight

    This is the heaviest division, for boxers who weigh more than 200 lbs. or 90.892 kg. In the Olympics, the over-91-kg. class is called Super Heavyweight.

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About the Author

Jeff Gordon has been reporting and writing since 1977. His most recent work has appeared on websites such as eHow, GolfLink, Ask Men, Open Sports, Fox Sports and MSN. He has previously written for publications such as "The Sporting News" and "The Hockey News." He graduated from the University of Missouri-Columbia School of Journalism in 1979 with a bachelor's degree.

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