Fighters · September 10, 2026
Amateur Boxing Weight Classes Explained (USA Boxing, in Pounds)
The USA Boxing amateur weight classes in pounds and kilograms, the traditional names, and how to pick the right one when you register to fight.
Amateur boxing doesn't use the pro divisions you hear on TV. USA Boxing sets its own classes, and every sanctioned amateur card in the U.S. — Aftershock Fights included — matches by them. Here they are in the pounds you'll actually see on the scale.
The classes
- ★up to 106 lb (48 kg) · Light Flyweight
- ★up to 112 lb (51 kg) · Flyweight
- ★up to 119 lb (54 kg) · Bantamweight
- ★up to 125 lb (57 kg) · Featherweight
- ★up to 132 lb (60 kg) · Lightweight
- ★up to 140 lb (63.5 kg) · Light Welterweight
- ★up to 147 lb (67 kg) · Welterweight
- ★up to 156 lb (71 kg) · Light Middleweight
- ★up to 165 lb (75 kg) · Middleweight
- ★up to 176 lb (80 kg) · Light Heavyweight
- ★up to 189 lb (86 kg) · Cruiserweight
- ★up to 203 lb (92 kg) · Heavyweight
- ★203+ lb (92+ kg) · Super Heavyweight
How to pick yours
Register at the weight you'll make on fight morning, not your walk-around weight — weigh-ins are at 8:00 AM the day of the event and a fighter who misses weight doesn't fight. If you sit between two classes, tell us in the notes; matchmakers can pair fighters at an agreed weight within a class.
Register to fight