Professional boxing weight classes

Weight limits are the upper limit of each division. Names differ between sanctioning bodies.

Class	From	Up to (kg)	Up to (lb)	Names by body
Light minimumweight	—	46.3	102.0	WBC: Atomweight; BoxRec: Atomweight; The Ring: Atomweight; IBF: Junior mini flyweight; WBO: Atomweight
Minimumweight	46.3 kg	47.6	105.0	WBC: Strawweight; BoxRec: Strawweight; The Ring: Strawweight; IBF: Mini flyweight; WBO: Mini flyweight
Light flyweight	47.6 kg	49.0	108.0	The Ring: Junior flyweight; IBF: Junior flyweight; WBO: Junior flyweight
Flyweight	49.0 kg	50.8	112.0
Super flyweight	50.8 kg	52.2	115.0	The Ring: Junior bantamweight; IBF: Junior bantamweight; WBO: Junior bantamweight
Bantamweight	52.2 kg	53.5	118.0
Super bantamweight	53.5 kg	55.3	122.0	The Ring: Junior featherweight; IBF: Junior featherweight; WBO: Junior featherweight
Featherweight	55.3 kg	57.2	126.0
Super featherweight	57.2 kg	59.0	130.0	The Ring: Junior lightweight; IBF: Junior lightweight; WBO: Junior lightweight
Lightweight	59.0 kg	61.2	135.0
Super lightweight	61.2 kg	63.5	140.0	The Ring: Junior welterweight; IBF: Junior welterweight; WBO: Junior welterweight
Welterweight	63.5 kg	66.7	147.0
Super welterweight	66.7 kg	69.9	154.0	The Ring: Junior middleweight; IBF: Junior middleweight; WBO: Junior middleweight
Middleweight	69.9 kg	72.6	160.0
Super middleweight	72.6 kg	76.2	168.0
Light heavyweight	76.2 kg	79.4	175.0
Cruiserweight	79.4 kg	90.7	200.0	WBO: Junior heavyweight
Bridgerweight	90.7 kg	101.6	224.0
Heavyweight	101.6 kg	no limit	no limit

Source: Wikipedia — Weight class (boxing) (CC BY-SA 4.0). Pound values are converted from kilograms where the source gives kilograms.

Data: Wikipedia (English) (CC BY-SA 4.0). Retrieved 2026-10-22.

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