| Minimumweight | 7½ st | 47,627 kg | 105 lbs |
| Light Flyweight | 7st 10 lbs | 48,988 kg | 108 lbs |
| Flyweight | 8 st | 50,802 kg | 112 lbs |
| Super Flyweight | 8 st 3 lbs | 52,163 kg | 115 lbs |
| Bantamweight | 8 st 6 lbs | 53,525 kg | 118 lbs |
| Super Bantamweight | 8 st 10 lbs | 55,225 kg | 122 lbs |
| Featherweight | 9 st | 57,153 kg | 126 lbs |
| Super Featherweight | 9 st 4 lbs | 58,967 kg | 130 lbs |
| Lightweight | 9 st 9 lbs | 61,235 kg | 135 lbs |
| Super Lightweight | 10 st | 63,503 kg | 140 lbs |
| Welterweight | 10½ st | 66,678 kg | 147 lbs |
| Super Welterweight | 11 st | 69,85 kg | 154 lbs |
| Middleweight | 11 st 6 lbs | 72,574 kg | 160 lbs |
| Super Middleweight | 12 st | 76,203 kg | 168 lbs |
| Light Heavyweight | 12½ st | 79,378 kg | 175 lbs |
| Cruiserweight | 14 st 4 lbs | 90,892 kg | 200 lbs |
| Heavyweight | Unlimited over 14 st 4 lbs | Unlimited over 90,892 kg | Unlimited over 200 lbs |