Professional MMA weight classes and current UFC Champions (Champions are subject to change)
Fight leagues use a weight class system to make fights more fair. Depending on the promotion, fighters weigh in no more than 24hrs before a fight. Many of them use techniques to lose water weight and cut down to a smaller size. It's common for most competitors to walk around 15-45lbs heavier than the weight they fight at.
| Weight class | Upper Weight Limit | Current UFC Men's Champion |
|---|---|---|
| Flyweight | 125 lb (56.7 kg) | Deiveson Figueredo |
| Bantamweight | 135 lb (61.2 kg) | Petr Yan |
| Featherweight | 145 lb (65.8 kg) | Alexander Volkanovski |
| Lightweight | 155 lb (70.3 kg) | Charles Oliveira |
| Welterweight | 170 lb (77.1 kg) | Kamaru Usman |
| Middleweight | 185 lb (83.9 kg) | Israel Adesanya |
| Light heavyweight | 205 lb (93.0 kg) | Glover Teixeira |
| Heavyweight | 265 lb (120.2 kg) | Francis Ngannou |
| Weight class | Upper Weight Limit | Current UFC Women's Champion |
|---|---|---|
| Strawweight | 115 lb (52.2 kg) | Rose Namajunas |
| Flyweight | 125 lb (56.7 kg) | Valentina Shevchenko |
| Bantamweight | 135 lb (61.2 kg) | Julianna Peña |
| Featherweight | 145 lb (65.8 kg) | Amanda Nunes |