Boxing weight classes

There are 17 divisions, two naming systems and a heavyweight class with no ceiling. The table is the easy part. The part that decides careers is which of those numbers your own body can hold, and that is not a question the list answers.

The 17 professional divisions

Limits as published by the WBC. The four major bodies use effectively identical figures.

The last column is the band the 2025 ISSN position stand gives for the weight to carry between camps: 12 to 15 percent above the division limit. Why that band matters more than the limit. To run it on your own weight, use the boxing weight class calculator.

Why the same division has two names

Super featherweight and junior lightweight are the same 130 lb class. So are super welterweight and junior middleweight at 154, and every other pair.

The WBC and WBO tend to use the super prefix, counting upward from the division below. The IBF and WBA historically used junior, counting downward from the division above. Nothing about the limit changes. If you see both names on a bout sheet, they refer to the same number.

Two divisions worth a note. Bridgerweight was created by the WBC in 2020 for fighters between 200 and 224 lb, and it exists because a large group of men sit in the gap between cruiserweight and modern heavyweights. It is not recognised across all bodies. Cruiserweight was introduced in 1979 at 190 lb for the same reason, and later moved to its present 200.

The gaps are not even, and that is the whole story

Every article prints the list. Almost none of them point out that the steps between the rungs vary enormously, which is the single most useful thing on this page if you are deciding where to fight.

The consequence is that generic advice about "moving up a weight class" is close to useless without knowing which end of the sport you are at. Below featherweight the divisions are packed tightly and the decision is fine-grained. Above light heavyweight the gaps are so wide that the question becomes what size of man you actually are.

MMA is spaced differently again. In the UFC every step below heavyweight is 7 to 11 percent, which is why a missed division there means 10 to 20 pounds. The full ladder is in UFC weight classes.

Fighters I have worked with sit across most of this table: Murodjon Ahmadaliev at super bantamweight, Denys Berinchyk at lightweight, Israil Madrimov and Sergiy Bogachuk at super welterweight, Oleksandr Gvozdyk at light heavyweight, Oleksandr Usyk at cruiserweight and Vladyslav Sirenko at heavyweight. How those camps were run is in how boxers cut weight.

Amateur boxing is on a different scale entirely

Amateur competition uses metric classes and a different weigh-in format, and it now runs on two systems. World Boxing, recognized by the IOC in February 2025 and in charge of the Olympic tournament for Los Angeles 2028, has used these classes since January 2025:

The IBA, whose IOC recognition was withdrawn in 2023, still runs its own events on its own grid: under rules effective from April 2026 the elite men's classes are 48, 51, 54, 57, 60, 63.5, 67, 71, 75, 80, 86, 92, 100 and over 100 kg. It sits outside the Olympic pathway, and the IOC has said a boxer whose national federation adheres to the IBA cannot compete at LA28. Confirm which body runs your competition before you plan anything.

The bigger difference lies in timing: amateurs typically weigh in on the morning of competition, and again on each subsequent morning of a multi-day tournament. There is no overnight recovery window to exploit, so a cut that works for a professional is actively harmful to an amateur. Same-day weigh-ins change the entire plan.

Catchweights and rehydration clauses

Two things that sit outside the table but decide a lot of fights.

A catchweight is a contracted limit agreed between camps that does not match a recognised division. It is used when fighters from adjacent classes meet, or when one of them can no longer make his own division honestly. It is a negotiation, not a rule, and titles are usually not at stake unless a sanctioning body signs off.

A rehydration clause caps how much weight a fighter may regain between the weigh-in and the bout. It exists because the number on the scale stopped describing the man in the ring a long time ago. Five different things get called a rehydration clause and only one of them is a sanctioning body rule, which is why arguments about them go in circles.

So which division is yours

Not the lightest one you can reach. The lightest one you can reach without losing what makes you worth watching, and hold across a career rather than for one night.

The practical test I use is simple. If a fighter arrives at the ceiling of a safe cut every single camp, and every camp is harder than the last, the division is telling him something. That is not a discipline problem and it will not be fixed by a better protocol.

Three things worth knowing before you decide:

• Your walk-around weight matters more than your fight weight. A man who lives at 102 kg and boxes at 90.7 is doing something different from a man who lives at 94 and boxes at 90.7, even though the licence says the same thing. The first of those is the cruiserweight gap I worked with in Usyk's camps, and the camp numbers are here.
• The step up may be smaller than you think. Below lightweight, one division is 3 to 4 percent. Many fighters spend years suffering for a gap they could close by eating properly for 8 weeks.
• The weigh-in format changes the answer. The same body can hold a division comfortably with a day to recover and cannot hold it with a same-day weigh-in.

The arithmetic for your own numbers is in the calculator, and the longer version of this decision is in choosing a weight class. If you want to see what a descent looks like when it is planned properly, the camp version is here.

Common questions

How many weight classes are there in professional boxing?

There are 17 traditional divisions, from strawweight at 105 lb to heavyweight, which has no upper limit. The WBC also recognises bridgerweight at 224 lb, between cruiserweight and heavyweight.

What is the difference between super featherweight and junior lightweight?

Nothing. They are two names for the same 130 lb division. The WBC and WBO tend to use the super prefix, the IBF and WBA historically used junior, and the limit is identical.

Do amateur and professional boxing use the same weight classes?

No. Amateur boxing runs on metric classes, and the body that governs it is World Boxing, which the IOC recognises and which runs the Olympic pathway. The IBA lost IOC recognition in 2023 and publishes a separate grid for its own events. Limits are unlike the professional divisions either way, and the weigh-in is usually on the morning of competition rather than the day before.

What is a catchweight in boxing?

A contracted weight agreed between the 2 camps that does not correspond to a recognised division limit, used when fighters from adjacent divisions meet. No title is usually at stake unless the sanctioning body approves it.

What should I weigh between fights for my boxing division?

The 2025 ISSN position stand puts the band at 12 to 15 percent above the division limit between camps: for a 147-pound welterweight, roughly 165 to 169 pounds. The table on this page gives the band for every division.

Which weight class should I box at?

The one you can reach without losing performance, and hold across a season. If you reach the ceiling of a safe cut every camp, that is information about your division rather than about your discipline.