Weight class Upper weight limit Strawweight 115 lb (52.2 kg) Flyweight 125 lb (56.7 kg) Bantamweight 135 lb (61.2 kg) Featherweight 145 lb (65.8 kg) Lightweight 155 lb (70.3 kg) Super lightweight 165 lb (74.8 kg) Welterweight 170 lb (77.1 kg) Super welterweight 175 lb (79.4 kg) Middleweight 185 lb (83.9 kg) Super middleweight 195 lb (88.5 kg) Light heavyweight 205 lb (93.0 kg) Cruiserweight 225 lb (102.1 kg) Heavyweight 265 lb (120.2 kg) Super heavyweight N/A