Boxing is organised into weight classes to ensure competitive fairness — two fighters of significantly different weights create a safety and fairness problem. Here's the complete guide to boxing's weight divisions and what they mean.
The Weight Classes
Boxing organisations (WBC, WBA, IBF, WBO) use slightly different names and limits, but the core structure is consistent. Here are the major divisions in ascending order:
| Division | Weight Limit |
|---|---|
| Minimumweight (Strawweight) | Up to 47.6 kg (105 lbs) |
| Light Flyweight (Jr Flyweight) | Up to 49.0 kg (108 lbs) |
| Flyweight | Up to 50.8 kg (112 lbs) |
| Super Flyweight (Jr Bantamweight) | Up to 52.2 kg (115 lbs) |
| Bantamweight | Up to 53.5 kg (118 lbs) |
| Super Bantamweight (Jr Featherweight) | Up to 55.3 kg (122 lbs) |
| Featherweight | Up to 57.2 kg (126 lbs) |
| Super Featherweight (Jr Lightweight) | Up to 59.0 kg (130 lbs) |
| Lightweight | Up to 61.2 kg (135 lbs) |
| Super Lightweight (Jr Welterweight) | Up to 63.5 kg (140 lbs) |
| Welterweight | Up to 66.7 kg (147 lbs) |
| Super Welterweight (Jr Middleweight) | Up to 69.9 kg (154 lbs) |
| Middleweight | Up to 72.6 kg (160 lbs) |
| Super Middleweight | Up to 76.2 kg (168 lbs) |
| Light Heavyweight | Up to 79.4 kg (175 lbs) |
| Cruiserweight (Jr Heavyweight) | Up to 90.7 kg (200 lbs) |
| Heavyweight | No upper limit (typically 90+ kg) |
Why Weight Classes Matter in Training
Weight classes exist for competition. In training, the concept still matters for sparring pairings — a significant weight difference between sparring partners creates safety issues and produces unrealistic training for both parties. Responsible gyms pair sparring partners close in weight.
Notable Australian Weight Class Connections
- Kostya Tszyu — Unified super lightweight (junior welterweight) champion at 63.5kg
- Jeff Fenech — World champion in super bantamweight, super featherweight, and featherweight
- Tim Tszyu — Current world champion in super welterweight (junior middleweight) at 69.9kg
Train at Killa Boxing Marrickville. First class free — book at kbf.pro.