Find the Weight Limits That Apply to Your Boxing Event

World Boxing and USA Boxing list 10 men’s and 10 women’s amateur boxing weight divisions for Elite competition and their respective U19 and Youth categories. That is not a universal list: younger age groups have different classes, and the Los Angeles 2028 Olympics will offer only seven divisions for each sex.

Start with the governing body, age group and event—not the division name alone. World Boxing’s updated Elite categories took effect on January 1, 2025; USA Boxing’s national rulebook is effective January 1, 2026. The lists below follow those rules. (World Boxing rules, section 2.2)

Select your competition list and men’s or women’s category to see the published limits.

Men’s Amateur Divisions Run From Flyweight to Super Heavyweight

These tables pair World Boxing’s kilogram limits with the pound figures published by USA Boxing for Elite and Youth boxers. The pound figures are not exact mathematical conversions. Use the measurement and limit specified by your event rather than converting and rounding it yourself.

Men’s Division	World Boxing kg	USA Boxing lb
Flyweight	50	110
Bantamweight	55	121
Lightweight	60	132
Welterweight	65	143
Light Middleweight	70	154
Middleweight	75	165
Light Heavyweight	80	176
Cruiserweight	85	187
Heavyweight	90	198
Super Heavyweight	Over 90	Over 198

Women’s Amateur Divisions Run From Light Flyweight to Heavyweight

Women’s Division	World Boxing kg	USA Boxing lb
Light Flyweight	48	106
Flyweight	51	112
Bantamweight	54	119
Featherweight	57	125
Lightweight	60	132
Welterweight	65	143
Light Middleweight	70	154
Middleweight	75	165
Light Heavyweight	80	176
Heavyweight	Over 80	Over 176

Table sources: World Boxing’s published division list and USA Boxing’s 2026 national rulebook, rule 7.2.

Each listed number is an upper limit, except the open-ended final division. Under World Boxing rules, men’s welterweight is over 60 kg and no more than 65 kg. A boxer weighing exactly 60 kg does not meet its minimum at the first official weigh-in; 65 kg meets its maximum.

The lowest World Boxing men’s class starts above 47 kg, while the lowest women’s class starts above 45 kg. Those lower boundaries matter: an upper-limit table alone does not establish eligibility for every possible weight. (World Boxing rules, sections 2.2 and 5.6)

LA28 Has Seven Divisions for Each Sex

The confirmed Los Angeles 2028 Olympic categories are a reduced selection—not the full 10-class structure above.

Men’s Limits, kg	Women’s Limits, kg
55	51
60	54
65	57
70	60
80	65
90	70
Over 90	75

These seven medal events for each sex are recorded in the official qualification system dated May 6, 2026. For the judging format alongside those limits, see our Olympic boxing guide. (LA28 qualification system, section A)

A division’s presence in the World Boxing Elite list therefore does not mean it is available at LA28. Check the Olympic list when interpreting qualification places or medal results.

Junior and Younger Boxers Use Different Lists

World Boxing defines Elite as ages 19–40, U19 as 17–18 and U17 as 15–16, using calendar year of birth. Its U17 boys’ and girls’ classes have upper limits of 46, 48, 50, 52, 54, 57, 60, 63, 66, 70, 75 and 80 kg, followed by over 80 kg. Do not apply the Elite table automatically to a junior boxer. (World Boxing rules, sections 2.1–2.2)

USA Boxing also lists additional domestic Junior classes at 90 and 95 lb, alongside its 101 lb-and-up categories. Its younger Prep groups have their own available classes. The World Boxing U17 list is therefore not a complete list of U.S. domestic options; use USA Boxing’s age-specific table for that competition. (USA Boxing rules, sections 7.1–7.2)

The Event Rules Control the Official Weigh-In

For a USA Boxing advancing tournament, check its official event fact sheet. Rule 7.4 incorporates that document into the event’s rules. It can restrict the available weight classes and set specific weigh-in requirements, so the national list alone does not confirm that a particular division will be offered.

At USA Boxing national competitions, boxers must weigh in on the day they box. There is zero tolerance for overweight, and failing the limit means disqualification. Regional, local and club weigh-in procedures are established by the event’s Official in Charge; the national-competition procedure should not be assumed to apply unchanged to those events. (USA Boxing rules, sections 7.4 and 11)

World Boxing likewise requires making weight on the day of the bout. Exceeding the maximum gives the scheduled opponent a walkover; the minimum is also checked at the boxer’s first official weigh-in. (World Boxing rules, section 5.6)

Weight Class Does Not Add Points to a Score

A division determines the weight category being contested—not a points advantage. USA Boxing uses the 10-point must system across these classes, with scoring blows, technical and tactical superiority, and competitiveness ranked in that order. A knockdown does not automatically force a 10–8 round under these rules. (USA Boxing rules, rule 14, particularly sections 14.6–14.8)

When reading a result, keep the category label separate from each judge’s round scores. For professional limits rather than amateur categories, use the professional boxing weight divisions list.