BoxingWeightClasses.com

    Amateur & Olympic Boxing Weight Classes

    A complete guide to IBA amateur and Olympic boxing divisions. Compare weight limits for men and women, understand the differences from professional boxing's 17 classes, and see how Olympic boxing consolidates the field into 13 medal events.

    IBA Men
    13
    Divisions
    IBA Women
    12
    Divisions
    Olympic Men
    7
    Divisions
    Olympic Women
    6
    Divisions

    Pro vs Amateur vs Olympic

    FeatureProfessionalIBA AmateurOlympic
    Total men's divisions17 divisions13 divisions (IBA)7 divisions
    Total women's divisions17 divisions12 divisions (IBA)6 divisions
    Lightest classMinimumweight — 105 lbs / 47.6 kgMinimumweight — ~101–106 lbs / 46–48 kgMen: Flyweight ~101–112 lbs / 46–51 kg; Women: Light Flyweight ~99–110 lbs / 45–50 kg
    Heaviest classHeavyweight — 200+ lbs / 90.7+ kg (no upper limit)Super Heavyweight — 203+ lbs / 92+ kgSuper Heavyweight — 203+ lbs / 92+ kg
    Weigh-in timingDay before the fightDay of the fight (morning)Day of the fight (morning)
    Rounds4–12 rounds (3 minutes each)3 rounds (3 minutes each)3 rounds (3 minutes each)
    Scoring system10-point must / damage-basedPoints-based (clean punches scored)Points-based (10-point must since 2013)
    Head protectionNot usedMandatory (IBA competitions)Not used (since Rio 2016)

    IBA Men's Weight Classes (13 Divisions)

    #Class NameWeight Limit (kg)Weight Limit (lbs)
    1Minimumweight46–48 kg101–106 lbs
    2Flyweight48–51 kg106–112 lbs
    3Bantamweight51–54 kg112–119 lbs
    4Featherweight54–57 kg119–126 lbs
    5Lightweight57–60 kg126–132 lbs
    6Light Welterweight60–63.5 kg132–140 lbs
    7Welterweight63.5–67 kg140–148 lbs
    8Light Middleweight67–71 kg148–157 lbs
    9Middleweight71–75 kg157–165 lbs
    10Light Heavyweight75–80 kg165–176 lbs
    11Cruiserweight80–86 kg176–190 lbs
    12Heavyweight86–92 kg190–203 lbs
    13Super Heavyweight92+ kg203+ lbs

    IBA Women's Weight Classes (12 Divisions)

    #Class NameWeight Limit (kg)Weight Limit (lbs)
    1Minimumweight45–48 kg99–106 lbs
    2Light Flyweight48–50 kg106–110 lbs
    3Flyweight50–52 kg110–115 lbs
    4Bantamweight52–54 kg115–119 lbs
    5Featherweight54–57 kg119–126 lbs
    6Lightweight57–60 kg126–132 lbs
    7Light Welterweight60–63 kg132–139 lbs
    8Welterweight63–66 kg139–146 lbs
    9Light Middleweight66–70 kg146–154 lbs
    10Middleweight70–75 kg154–165 lbs
    11Light Heavyweight75–81 kg165–179 lbs
    12Heavyweight81+ kg179+ lbs

    Olympic Men's Weight Classes (7 Divisions)

    #Class NameWeight Limit (kg)Weight Limit (lbs)
    1Flyweight46–51 kg101–112 lbs
    2Featherweight51–57 kg112–126 lbs
    3Light Welterweight57–63.5 kg126–140 lbs
    4Light Middleweight63.5–71 kg140–157 lbs
    5Light Heavyweight71–80 kg157–176 lbs
    6Heavyweight80–92 kg176–203 lbs
    7Super Heavyweight92+ kg203+ lbs

    Olympic Women's Weight Classes (6 Divisions)

    #Class NameWeight Limit (kg)Weight Limit (lbs)
    1Light Flyweight45–50 kg99–110 lbs
    2Bantamweight50–54 kg110–119 lbs
    3Featherweight54–57 kg119–126 lbs
    4Lightweight57–60 kg126–132 lbs
    5Welterweight60–66 kg132–146 lbs
    6Middleweight66–75 kg146–165 lbs

    Key Differences: Amateur vs Professional

    Amateur boxing — governed by the IBA (formerly AIBA) — operates under a very different framework from the professional sport. The most immediate difference is the number of weight classes: 13 for men and 12 for women at IBA elite level, compared to 17 in professional boxing.

    Olympic boxing narrows the field even further, with 7 men's and 6 women's divisions. This means many amateur fighters must either move up or down in weight to qualify for the Games, or accept that their natural IBA class has no Olympic equivalent.

    Same-day weigh-ins are perhaps the biggest practical difference. Because amateur boxers weigh in on the morning of the bout, there is no 24-hour rehydration window. This effectively eliminates the extreme weight-cutting culture that dominates professional boxing and MMA, where fighters routinely drop 10–20 lbs and regain it overnight.

    Amateur bouts are shorter — 3 rounds of 3 minutes — and scoring rewards clean, technical punching over knockdown power. The Olympics switched to a 10-point must system in 2013, bringing it closer to professional judging, but the ethos remains different: accumulate points, not damage.

    Head protection is mandatory at IBA amateur events but was removed from Olympic boxing for men in 2016 and women in 2024. AIBA/IBA studies concluded that headguards increased the rotational force of glancing blows, paradoxically raising concussion risk.

    Frequently Asked Questions

    IBA elite amateur boxing has 13 men's weight classes and 12 women's weight classes. Olympic boxing is more selective, with 7 men's and 6 women's divisions.

    Professional boxing has 17 divisions with tighter granularity (e.g., Super Featherweight at 130 lbs). Amateur IBA has 13 men's and 12 women's classes, often with wider kg ranges. The names overlap but the limits differ.

    Olympic boxing uses a subset of IBA weight classes. For Paris 2024, men fought in 7 divisions (down from IBA's 13) and women in 6 divisions (down from IBA's 12). Olympic classes are broader to accommodate global qualification.

    Yes. Amateur and Olympic weigh-ins happen on the morning of the competition. This discourages extreme dehydration because fighters cannot rehydrate for 24 hours before stepping into the ring.

    AIBA studies found that headgear increased the rotational force from glancing punches, raising concussion risk. Men dropped headgear at Rio 2016; women's Olympic boxing followed at Paris 2024.

    Yes, since 2016 AIBA rule changes allow professional boxers to qualify for the Olympics. However, they must compete under amateur rules (3 rounds, same-day weigh-in) and qualify through their national federation.