The UFC currently runs 12 active weight divisions, eight for men and four for women, each with its own weight limit that fighters must make the day before competing.
## Men’s Divisions
– Flyweight: up to 125 pounds
– Bantamweight: up to 135 pounds
– Featherweight: up to 145 pounds
– Lightweight: up to 155 pounds
– Welterweight: up to 170 pounds
– Middleweight: up to 185 pounds
– Light Heavyweight: up to 205 pounds
– Heavyweight: up to 265 pounds
## Women’s Divisions
– Strawweight: up to 115 pounds
– Flyweight: up to 125 pounds
– Bantamweight: up to 135 pounds
– Featherweight: up to 145 pounds (currently vacant since 2023)
## Why Weight Classes Exist
Weight classes were introduced at UFC 12 in 1997, splitting fighters into heavyweight and lightweight divisions for the first time after the promotion’s early years featured fighters of wildly different sizes competing against each other. The system has expanded steadily since, adding new divisions as the talent pool deepened at each weight.
## Making Weight
Fighters typically weigh in roughly 24 hours before their bout, then rehydrate before fight night, which is why fighters often look noticeably bigger in the cage than they did at the scale. Missing weight usually results in a financial penalty and can affect title eligibility, since champions typically cannot win a belt after missing weight even with a win.
## How This Connects to Rankings and Titles
Each division has its own champion and its own top-15 ranked contenders, which is why understanding weight classes is the foundation for following UFC rankings and title picture at all.
For where each current champion sits, see our complete UFC champions list. If you’re building a broader understanding of the sport, our fight card explainer and UFC vs boxing comparison are good next reads.
## Final Word
Twelve divisions, twelve weight limits: once you know the numbers, every UFC card and ranking list makes a lot more sense.