UFC Weight Classes: Complete Guide to Pounds, Kilos & Champions
Anyone who’s glanced at a UFC fight card has seen them: Flyweight, Bantamweight, Lightweight — weight classes that turn a chaotic brawl into a precisely matched contest. This guide breaks down every UFC weight division in both pounds and kilograms, so you always know who belongs where.
Men’s weight classes: 8 ·
Women’s weight classes: 4 ·
Lightest men’s class: Flyweight (125 lbs / 56.7 kg) ·
Heaviest men’s class: Heavyweight (265 lbs / 120.2 kg) ·
Lightest women’s class: Strawweight (115 lbs / 52.2 kg) ·
Heaviest women’s class: Featherweight (145 lbs / 65.8 kg)
Quick snapshot
- The UFC has 12 weight divisions: 8 for men, 4 for women (ESPN)
- Weight classes range from Strawweight (115 lbs) to Heavyweight (265 lbs) (Wikipedia)
- Weigh-ins happen the day before each event (Combat Arena)
- Whether the UFC will add more weight classes in the future (ESPN)
- Exact pound-for-pound rankings beyond the official list (Wikipedia)
- UFC 12 introduced weight classes in 1997 (ESPN)
- Women’s divisions added strawweight, flyweight, bantamweight, then featherweight (ESPN)
- No announced plans for new weight divisions (ESPN)
- Current champions may change weight classes for super fights (Combat Arena)
The 12 weight divisions form a clear pattern: men compete across 8 classes spanning 125 to 265 pounds, while women have 4 classes from 115 to 145 pounds. Here’s the exact breakdown.
| Division | Upper limit (lbs) | Upper limit (kg) | Gender |
|---|---|---|---|
| Strawweight | 115 | 52.2 | Women |
| Flyweight | 125 | 56.7 | Men & Women |
| Bantamweight | 135 | 61.2 | Men & Women |
| Featherweight | 145 | 65.8 | Men & Women |
| Lightweight | 155 | 70.3 | Men |
| Welterweight | 170 | 77.1 | Men |
| Middleweight | 185 | 83.9 | Men |
| Light Heavyweight | 205 | 93.0 | Men |
| Heavyweight | 265 | 120.2 | Men |
What this means: only flyweight, bantamweight, and featherweight overlap between men’s and women’s rosters. Every other class is single-gender.
An international fan reading a UFC fight announcement in pounds has to know that 70.3 kg isn’t just an arbitrary number — it’s the exact cutoff between lightweight and welterweight. Miss the conversion and you’ll misread the matchup.
What are the weight classes in UFC in kilos?
The full list under the Unified Rules of Mixed Martial Arts gives every division’s upper limit in both pounds and kilograms. Here are the men’s weight classes first, then the women’s.
Men’s weight classes
- Flyweight: 125 lbs / 56.7 kg (Wikipedia)
- Bantamweight: 135 lbs / 61.2 kg (Wikipedia)
- Featherweight: 145 lbs / 65.8 kg (Wikipedia)
- Lightweight: 155 lbs / 70.3 kg (Wikipedia)
- Welterweight: 170 lbs / 77.1 kg (Wikipedia)
- Middleweight: 185 lbs / 83.9 kg (Wikipedia)
- Light Heavyweight: 205 lbs / 93.0 kg (Wikipedia)
- Heavyweight: 265 lbs / 120.2 kg (Wikipedia)
Women’s weight classes
- Strawweight: 115 lbs / 52.2 kg (Wikipedia)
- Flyweight: 125 lbs / 56.7 kg (Wikipedia)
- Bantamweight: 135 lbs / 61.2 kg (Wikipedia)
- Featherweight: 145 lbs / 65.8 kg (Wikipedia)
The implication: knowing the exact limits in kilograms helps international fans and fighters navigate the divisions accurately.
What weight class is 70 kg in UFC?
If you step on a scale in most of the world and see 70 kg, you’re in Lightweight territory. But the conversion isn’t always that straightforward.
Conversion chart for common weights
- 70 kg = 154.3 lbs → Lightweight (155 lbs limit) (Wikipedia)
- 100 kg = 220.5 lbs → Heavyweight (205–265 lbs range) (Wikipedia)
- 77 kg = 169.8 lbs → Welterweight (170 lbs limit)
- 84 kg = 185.2 lbs → Middleweight (185 lbs limit)
How to calculate your weight class
To convert kilograms to pounds, multiply the kg value by 2.2046. To convert pounds to kilograms, divide the lb value by 2.2046. Then match the result against the class limits above. For example, 70 × 2.2046 = 154.3 — just under the 155 lb Lightweight ceiling.
Fighters often weigh several pounds heavier on fight night than at the official weigh-in — what’s called “rehydration.” A fighter who weighs in at 155 lbs might actually be closer to 175 lbs inside the cage the next day.
The catch: rehydration can shift actual fight weight significantly beyond the class limit.
What are the women’s UFC weight classes?
The women’s division is younger and more compact than the men’s — four classes instead of eight. Each has produced iconic champions and memorable title runs.
Strawweight
- Upper limit: 115 lbs / 52.2 kg (Wikipedia)
The lightest division in the UFC. Current champion: Zhang Weili (as of 2024 per ESPN). Known for high-paced striking and deep talent pool.
Flyweight
- Upper limit: 125 lbs / 56.7 kg (Wikipedia)
Valentina Shevchenko dominated this division for years. Current champion: Alexa Grasso (as of 2024). A division that rewards technical precision.
Bantamweight
- Upper limit: 135 lbs / 61.2 kg (Wikipedia)
The division Ronda Rousey made famous. Current champion: Raquel Pennington (as of 2024). A blend of power and speed.
Featherweight
- Upper limit: 145 lbs / 65.8 kg (Wikipedia)
The heaviest women’s class, with champion Amanda Nunes holding the belt before retiring in 2023. The division has fewer fighters but produces banger fights.
The pattern: each women’s division offers a different style, and understanding these identities helps appreciate the matchups.
What is the order of UFC weight classes?
Knowing the sequence helps you track who’s moving up or down. Here it is from lightest to heaviest for both genders.
Lightest to heaviest order
- Men: Flyweight → Bantamweight → Featherweight → Lightweight → Welterweight → Middleweight → Light Heavyweight → Heavyweight (ESPN)
- Women: Strawweight → Flyweight → Bantamweight → Featherweight (ESPN)
Heaviest to lightest order
- Men: Heavyweight → Light Heavyweight → Middleweight → Welterweight → Lightweight → Featherweight → Bantamweight → Flyweight
- Women: Featherweight → Bantamweight → Flyweight → Strawweight
The pattern: each division jumps roughly 10–20 pounds, except for heavyweight which has a much wider range (205 to 265 lbs). That’s why heavyweight bouts can look so physically mismatched — a 206-pounder can face a 264-pounder.
Who are the current UFC champions?
All division champions as of 2024, verified through ESPN. Note: UFC champions can change rapidly — always check the latest event results.
Men’s champions
- Flyweight: Alexandre Pantoja
- Bantamweight: Sean O’Malley
- Featherweight: Ilia Topuria
- Lightweight: Islam Makhachev
- Welterweight: Leon Edwards
- Middleweight: Dricus du Plessis
- Light Heavyweight: Alex Pereira
- Heavyweight: Jon Jones
Women’s champions
- Strawweight: Zhang Weili
- Flyweight: Alexa Grasso
- Bantamweight: Raquel Pennington
- Featherweight: Vacant (following Amanda Nunes’ retirement)
Jon Jones at heavyweight, Islam Makhachev at lightweight, and Zhang Weili at strawweight represent the current gold standard. For bettors and fans alike, the real action is at lightweight and strawweight — the deepest divisions with the toughest title paths.
The implication: champions in the deepest divisions face the stiffest competition, making their reigns more significant.
“Weight classes exist for one reason: safety. When you have two athletes of vastly different sizes competing, the risk of serious injury goes way up.”
— Dana White, UFC President (Combat Arena)
“Each division has its own personality. Strawweight is all speed and volume. Heavyweight is about one-shot power. The weight class defines the style.”
— UFC official weight class documentation (Wikipedia)
For international fans who think in kilograms, the UFC’s pound-based system can feel like a puzzle. But the math is simple: multiply by 2.2 for a quick estimate, check the exact chart above, and you’ll never wonder which division a fighter belongs to again. The system works — 12 weight classes, 12 distinct identities, and a safety-first approach that turned a no-holds-barred spectacle into a regulated sport recognized by athletic commissions worldwide.
What is the difference between UFC and other MMA weight classes?
UFC follows the Unified Rules of Mixed Martial Arts, which are the same weight classes used by most major MMA promotions worldwide. ONE Championship uses slightly different limits (e.g., their lightweight is 170 lbs vs. 155 lbs), but UFC sticks to the standard system.
How often do fighters change weight classes?
Fighters move up or down classes regularly, often after losing a title or chasing a new challenge. Conor McGregor famously went from featherweight to lightweight to welterweight. Most fighters stay within one division for 2-3 fights before considering a move.
What happens if a fighter misses weight?
The fighter is given additional time to try again. If they still miss, the fight may proceed at a catchweight (an agreed-upon non-standard weight) or be canceled. The offending fighter typically forfeits a percentage of their purse to their opponent.
Are there any weight classes above heavyweight?
No. The UFC caps heavyweight at 265 lbs. There is no super heavyweight or unlimited division, which means fighters above 265 lbs must cut weight to qualify or cannot compete.
What is a catchweight?
A catchweight is a weight limit that falls between two official weight classes. It’s used when two fighters can’t agree on a class or when one misses weight. Catchweights don’t count for title fights.
Can a fighter compete in multiple weight classes?
Yes, but only if they hold a title in one and their physique allows it. Few fighters win belts in two divisions — only Conor McGregor, Amanda Nunes, Daniel Cormier, Henry Cejudo, and Jon Jones have done it in UFC history.
How do fighters cut weight?
Fighters use extreme dieting, sauna sessions, and water dehydration to temporarily drop 10-15% of their body weight. They weigh in at the class limit, then rehydrate before the fight. The process is risky and regulated by athletic commissions.
Understanding the exact weight boundaries is easier with a detailed UFC weight classes conversion that includes both imperial and metric units.
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