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Boxing Weight Classes Explained: Full Division List

boxing weight classes

Boxing weight classes split fighters into divisions by body weight, from minimum weight at 105 lb (47.6 kg) up to heavyweight, which has no upper limit. There are 17 main professional divisions, and each one has its own champions and belts. 

At Championship Belt UK, fans ask us about boxing weight classes all the time, so here’s a clear list with limits in pounds, kilograms, and stone.

What Are Boxing Weight Classes?

A weight class is a band of body weight. A fighter has to weigh at or below the limit for a division to box in it. The top division, heavyweight, is the only one without an upper limit.

The main reason is safety. A much lighter boxer facing a much heavier puncher is at serious risk of injury. Weight classes also keep fights fair, because they pair people of similar size and power.

Full List of Boxing Weight Classes: Limits in lb, kg and Stone

Here are the 17 professional boxing weight classes, from lightest to heaviest. The pound and kilogram figures match the two guides we checked. We added the stone column ourselves for UK readers, using 14 lb to a stone.

DivisionLimit in lbLimit in kgLimit in stone and lb
Minimumweight (strawweight)10547.67 st 7
Light flyweight108497 st 10
Flyweight11250.88 st
Super flyweight11552.28 st 3
Bantamweight11853.58 st 6
Super bantamweight12255.38 st 10
Featherweight12657.29 st
Super featherweight130599 st 4
Lightweight13561.29 st 9
Super lightweight14063.510 st
Welterweight14766.710 st 7
Super welterweight15469.911 st
Middleweight16072.611 st 6
Super middleweight16876.212 st
Light heavyweight17579.412 st 7
Cruiserweight20090.714 st 4
HeavyweightOver 200Over 90.7Over 14 st 4

ample. Names aren’t always the same across every sanctioning body, so check the rules for the event you’re following.

How Boxing Weight Classes Got Their Names

The names look odd until you spot the pattern. The traditional core of the sport is eight divisions: flyweight, bantamweight, featherweight, lightweight, welterweight, middleweight, light heavyweight and heavyweight. Later, promoters added in between divisions to give more fighters a place.

That’s where the word super comes in. A super flyweight sits just above flyweight. A super welterweight sits just above welterweight. You’ll also hear junior used in the same way, so a super lightweight is often called a junior welterweight, and a super welterweight is a junior middleweight.

It sounds confusing, but it’s only two labels for the same slot. The weight limit stays the same, whichever name you use.

How Weigh-Ins Work in Boxing Weight Classes

Every fighter must make the limit at an official weigh-in. It’s usually held the day before the bout. If a boxer misses weight, they can face a fine, and they can even lose their chance to fight for a title.

That’s why you’ll sometimes hear that a fight was in doubt right up to the scales. For fans, the weigh-in is a bit of theatre. For fighters, it’s the first big test of discipline.

Boxing Weight Classes and Championship Belts

Each division has its own champions, and that’s the link to belts. A champion in one weight class doesn’t hold the title for another, unless they move up and win a new one.

The big sanctioning bodies, the WBC, WBA, IBF and WBO, each recognise their own champion in every division. That means one weight class can have several belts around it. If you’d like the full story, read our guide to boxing belts, and our post on the history of the WBC belt. You can also see how a single body presents its title in our IBF championship belt guide.

Britain has its own tradition too. The Lonsdale Belt goes to the British champion in each weight division, which shows how closely belts and boxing weight classes are tied together.

Which Boxing Weight Classes Are the Most Popular?

It depends on who you ask. Heavyweight gets the headlines because it has no upper limit and the biggest punchers. Welterweight and middleweight have long histories and famous names. The lighter divisions are quick and technical, and many fans love them.

Rather than pick a favourite, we’d say follow the fighters you enjoy. Their division will find you. Many fans start with one big fight and slowly learn the divisions around it.

How to Find Your Own Boxing Weight Class

Curious where you’d fit? Weigh yourself in the morning and compare the number with the table. Pick the first row where your weight is at or below the limit. That’s your closest division.

Remember, this is for fun. If you want to box, ask a qualified coach at a registered gym. They’ll tell you the right category for training and sparring, and they’ll look after your health. Never try to lose weight quickly to hit a number.

Reading the Table Like a Fan

The gaps between divisions aren’t equal. Some steps are only three or four pounds apart, while the jump from light heavyweight at 175 lb to cruiserweight at 200 lb is much bigger. That’s why heavier divisions feel wider.

It also explains a lot of title talk. When commentators say a fighter is moving up, they mean the boxer is leaving one row for the next, usually to chase a new belt. When someone drops down, they’re aiming for a lower limit.Keep the table open next to a fight card, and the names on the poster start to mean something. You’ll see at a glance who’s fighting at super middleweight and who’s at light heavyweight.

Amateur and Olympic Boxing Weight Classes

Amateur and Olympic boxing use their own divisions, and the limits aren’t the same as the professional list above. Rules also change from time to time. If you’re signing up for a club or watching a major event, check the current rules from the governing body first.

Common Mix Ups About Boxing Weight Classes

A few things trip people up. Cruiserweight and heavyweight sound close, but cruiserweight stops at 200 lb and heavyweight starts above it. Super and junior are two names for the same slot. And a boxer who moves up is changing division, not changing the rules.

Another mix up is the belt itself. A belt belongs to a division, not to the fighter’s weight on the day. It’s a symbol of winning the title at that limit.

Boxing Belt Replicas for Every Division

Fans often tell us they’d like a belt that matches a favourite fighter’s division. Replicas make that easy. Take a look at our WBC red boxing belt, our WBO belt replica and the black IBF replica belt. If you prefer a lighter colour, the white IBF belt replica is a popular choice.

For more choice, browse our WBC boxing belt replica range. Every belt we sell is a replica made for fans and collectors. None is an official championship belt, and we never say otherwise.Think about where the belt will go before you order. A display piece can have bolder plates. A belt you’ll wear to an event should be comfortable on the waist. Our size notes on each product page will help you choose.

FAQs

How many boxing weight classes are there?

There are 17 main professional weight classes, from minimumweight at 105 lb to heavyweight with no upper limit. Some bodies have added extra divisions.

What is the lightest boxing weight class?

Minimumweight, also called strawweight, at 105 lb or 47.6 kg.

What is the heaviest boxing weight class?

Heavyweight. It starts above 200 lb, which is 90.7 kg, and has no upper limit.

What is the difference between super and junior weight classes?

Nothing. They’re two names for the same division. A super welterweight is also called a junior middleweight, for example.

What happens if a boxer misses weight?

They can face a fine and may lose eligibility to fight for a title.

Conclusion

Boxing weight classes keep the sport safe and fair. There are 17 main professional divisions, from 105 lb up to unlimited, and each one has its own champions and belts. Learn the list once, and you’ll follow weigh ins, title fights and belt talk much more easily.

If you’d like a belt to go with your favourite division, browse the boxing range at Championship Belt UK. We’d be glad to help you find one that suits your shelf or your gym.Want to double check the weight limits? Read the Boxing Insider guide to boxing weight classes.

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