Boxing weight classes & limits — full chart (2026)
The short answer: 17 classes, limits set in pounds
Professional boxing has 17 standard weight classes, from minimumweight (105 lb) at the bottom to heavyweight (no upper limit) at the top. Limits are defined in pounds, and the kilogram figures are conversions (1 lb = 0.45359237 kg). The limits themselves are identical across the WBA, WBC, IBF and WBO — only the names differ: WBC/WBO tend to use "Super [class]", while IBF/WBA-style naming uses "Junior [class]" / "Light [class]".
Weight-class chart (lightest to heaviest)
| Class | Alternate name | Limit (lb) | Limit (kg, approx) |
|---|---|---|---|
| Minimumweight | Strawweight | 105 | 47.6 |
| Light Flyweight | Junior Flyweight | 108 | 49.0 |
| Flyweight | — | 112 | 50.8 |
| Super Flyweight | Junior Bantamweight | 115 | 52.2 |
| Bantamweight | — | 118 | 53.5 |
| Super Bantamweight | Junior Featherweight | 122 | 55.3 |
| Featherweight | — | 126 | 57.2 |
| Super Featherweight | Junior Lightweight | 130 | 59.0 |
| Lightweight | — | 135 | 61.2 |
| Super Lightweight | Junior Welterweight / Light Welterweight | 140 | 63.5 |
| Welterweight | — | 147 | 66.7 |
| Super Welterweight | Junior Middleweight / Light Middleweight | 154 | 69.9 |
| Middleweight | — | 160 | 72.6 |
| Super Middleweight | — | 168 | 76.2 |
| Light Heavyweight | — | 175 | 79.4 |
| Cruiserweight | — | 200 | 90.7 |
| Heavyweight | — | no limit | — |
(kg values are rounded from published charts; the official limit is the pound figure.)
The naming split (Super vs Junior)
Some classes share a limit but go by two names. For example, Super Bantamweight (122 lb) = Junior Featherweight, Super Featherweight (130 lb) = Junior Lightweight, and Super Lightweight (140 lb) = Junior Welterweight / Light Welterweight. WBC/WBO lean "Super," IBF/WBA lean "Junior/Light," but the limit is the same — nothing to be confused about.
Notes on cruiserweight and heavyweight
Cruiserweight was created in 1979 at 190 lb. The WBC raised it in steps, reaching 200 lb in 2003, and the other bodies aligned at 200 lb. Heavyweight is anyone above the cruiserweight limit — there is no upper bound.
A newer bridgerweight division (224 lb / ~101.6 kg) sits between cruiserweight and heavyweight, but only the WBC (introduced 2020) and WBA recognize it; IBF and WBO do not. It is not one of the 17 universal classes, so it is excluded above.
Putting it to use
Knowing the divisions reveals why a multi-division title run is impressive, and what is at stake when a fighter moves up. Each division's order lives on KIAI's rankings. To compare strength across weights, see what pound-for-pound means.
Two current names show the range: Oleksandr Usyk holds the WBA/WBC/IBF titles at the top of the chart, heavyweight, while Gervonta Davis, the former WBA lightweight champion, fights near the middle at 135 lb.
Other current names span the chart too: Andy Ruiz Jr. fights at heavyweight, the very top of the scale, while Claressa Shields -- already an undisputed champion in three lower divisions -- is dropping three full weight classes from heavyweight to challenge at middleweight in August 2026, exactly the kind of cross-division move this chart makes concrete.
This article is part of the Combat Sports Glossary & Rules Guide. For striking-sport divisions, see kickboxing divisions & rankings 2026; for finish types, what is a TKO.
FAQ
- How many weight classes are there in professional boxing?
- There are 17 standard professional weight classes, from minimumweight (105 lb / ~47.6 kg) up to heavyweight, which has no upper weight limit.
- Why do some boxing weight classes have two different names?
- Because the limit is identical across the WBA, WBC, IBF and WBO, but the naming differs: the WBC/WBO tend to use "Super [class]" while the IBF/WBA use "Junior [class]" or "Light [class]" for the same limit -- for example Super Featherweight (130 lb) is the same weight as Junior Lightweight.