Boxing Weight Classes: All 17 Divisions in Pounds and Kilograms

The 17 weight classes of professional boxing from minimumweight to heavyweight, with limits in pounds and kilograms and the alternative names used by each sanctioning body.

Division	Limit, lb	Limit, kg
Heavyweight	over 200	over 90.7
Cruiserweight	200	90.7
Light heavyweight	175	79.4
Super middleweight	168	76.2
Middleweight	160	72.6
Super welterweight	154	69.9
Welterweight	147	66.7
Super lightweight	140	63.5
Lightweight	135	61.2
Super featherweight	130	59.0
Featherweight	126	57.2
Super bantamweight	122	55.3
Bantamweight	118	53.5
Super flyweight	115	52.2
Flyweight	112	50.8
Light flyweight	108	49.0
Minimumweight	105	47.6

Professional boxing has 17 weight classes, recognised by all four major sanctioning bodies: the WBA, WBC, IBF and WBO. Each body crowns its own champion in every division; a boxer who holds all four belts is the undisputed champion.

Different names for the same division

The limits are the same everywhere, but the names vary. Super lightweight is also called junior welterweight or light welterweight, and super flyweight is also junior bantamweight. Minimumweight is also known as strawweight or mini flyweight.

Weigh-ins

Title fights are weighed the day before. Boxers must make the limit for the title to be at stake; a champion who misses weight is usually stripped. The IBF also holds a second weigh-in on fight morning, where a boxer may not be more than 10 pounds over the limit.

Bridgerweight

In 2020 the WBC added a division between cruiserweight and heavyweight, called bridgerweight, with a limit of 224 pounds (101.6 kg). It is not one of the 17 traditional classes, and the IBF and WBO do not recognise it.