Boxing weight classes in order
Pro and amateur, lbs and kg.

Professional boxing has 17 standard weight classes, from strawweight at 105 lb to heavyweight above 200 lb WBC

The WBC also recognizes Bridgerweight, a division between cruiserweight and heavyweight. Amateur boxing uses a different set of classes, so the right chart depends on where you compete.

Professional boxing weight classes in order

Source: WBC weight scale and IBF rules. The WBC also has Bridgerweight, up to 224 lb, and its heavyweight starts above that.

The chart shows professional boxing weight classes from lightest to heaviest, with limits in pounds and kilograms. These are the weights you need to compare when choosing a division or checking a fight contract.

Some names change between sanctioning bodies, even when the weight limit stays the same. For example:

• Strawweight is also called Minimumweight or Mini Flyweight.
• Light Flyweight is called Jr. Flyweight by the IBF.
• Super Bantamweight becomes Jr. Featherweight in the IBF.
• Super Lightweight is also known as Jr. Welterweight.
• Super Welterweight is also called Jr. Middleweight.

These names can cause confusion when you read a fight announcement or look up a title. Check the actual weight limit instead of relying on the division name alone.

The chart also helps when you move between boxing and other combat sports. A familiar name does not always mean the same limit under another sport’s rules. Compare the UFC weight classes or Muay Thai weight classes before assuming the divisions match.

What is Bridgerweight in boxing?

Bridgerweight is a professional division created by the WBC to sit between cruiserweight and heavyweight.

The WBC sets its Bridgerweight limit at 224 lb, stated as 101 kg in its announcement, and places heavyweight above that limit WBC

That means a boxer may be considered a heavyweight under a traditional professional class chart but a Bridgerweight boxer under the WBC system.

You will not see Bridgerweight on every boxing weight class chart. It depends on which sanctioning body is involved.

If you are following a title fight, check the organization behind the belt. If you are entering a competition, use the division list published for that event.

Rule check: Do not assume Bridgerweight applies to your fight just because you see it on a general boxing chart.

Boxing weigh-in rules: When do boxers weigh in?

Professional boxing uses an official weigh-in before the fight. The purpose is to confirm that each boxer meets the contracted division limit.

Under IBF rules, the initial weigh-in happens 20 to 30 hours before the bout, a boxer who misses weight gets 2 hours to make it unless the local commission sets another window, and a second weigh-in takes place from 8:00 to 10:00 a.m. on fight day, except for heavyweight championships and unification bouts IBF

Your fight contract, sanctioning body, and local commission all matter. Do not plan around a general weigh-in schedule without checking the rules for your actual bout.

Making the official weight is only part of the process. You still need to eat, drink, rest, and prepare to perform afterward.

A boxer who reaches the limit through severe dehydration may feel weak even after drinking again. The scale cannot tell you whether your strength, focus, or energy has recovered.

Safety: Do not use saunas, sweat suits, spitting, diuretics, laxatives, vomiting, or fasting to force your weight down. These are dangerous shortcuts. Plan your division around a weight you can reach without putting your health at risk.

The IBF fight-day weigh-in and rehydration limits

Source: IBF rules. Waived for heavyweight title and unification bouts.

The IBF fight-day chart matters because the official weigh-in is not the only scale check you may face.

The table lists the allowed fight-day weight for each division. Find your contracted class and compare it with the matching second-day limit. The difference is a ceiling, not a target for how much weight you should regain.

This changes how you should think about rehydration.

After the official weigh-in, your goal is to restore normal hydration and energy without upsetting your stomach. Drinking as much as possible immediately is not a good plan. Neither is trying to eat everything you skipped before the scale.

A better approach is to spread food and fluids across your recovery period, paying attention to how you feel.

Keep these points in mind:

• Do not treat an allowed weight increase as an amount you must regain.
• Choose familiar foods that your stomach handles well.
• Drink steadily rather than forcing large amounts at once.
• Leave yourself time to rest before the bout.
• Plan for any additional weigh-in required by your event.

Use the rehydration calculator to organize your post-weigh-in recovery. It can help you plan, but it cannot guarantee that you have fully recovered from dehydration.

WBC weight checks: 30 days and 7 days before a fight

The WBC weight scale calls for a boxer to be no more than 10% above the official division limit at 30 days before the fight and no more than 5% above it at 7 days before the fight WBC

Here is the lightweight example:

These checkpoints are meant to keep a boxer closer to the contracted weight during training camp.

For you, the lesson is simple: making weight should be a planned process, not a last-minute emergency.

If your normal training weight is far above your chosen division, think carefully about whether that class makes sense. A lower number on the scale does not automatically make you a better fighter.

You can use the weight cut calculator to compare your current weight with the division limit before you commit.

Women’s boxing weight classes

Women compete across many of the same professional weight classes as men. The names and limits depend on the sanctioning organization.

The IBF also includes a female-only Jr. Mini-Flyweight division at 102 lb (46.266 kg), below the usual strawweight limit IBF

For an adult professional boxer, start with the professional chart and confirm that the division is offered for your bout.

For amateur women, use the amateur chart instead.

The USA Boxing Elite and Youth/U19 women’s divisions run from Light Flyweight at 48 kg (106 lb) through Heavyweight above 80 kg (176 lb) USA Boxing

Do not mix professional and amateur limits. Even when the class names sound alike, the weight boundaries may differ.

If you are moving from amateur boxing into professional competition, review the division list again before choosing your target.

Amateur boxing weight classes: USA Boxing

Source: USA Boxing.

USA Boxing uses its own amateur weight categories. The classes differ from the standard professional chart, and the men’s and women’s lists are not identical.

The USA Boxing Elite and Youth/U19 men’s divisions run from Flyweight at 50 kg (110 lb) through Super Heavyweight above 90 kg (198 lb) USA Boxing

Use the official chart for your competition rather than a professional boxing list.

Amateur tournaments may organize divisions by age group and event category. Confirm which list applies before you enter your weight.

Also check the event instructions for its weigh-in process. A boxing club, coach, or tournament organizer should be able to tell you which rules apply.

Rule check: A weight class chart tells you the division limits. It does not replace the event’s weigh-in instructions or eligibility requirements.

How to choose the right boxing weight class safely

The lowest class you can reach is not always the best class for you.

Start with your normal, well-hydrated training weight. Think about how you feel during sparring, conditioning, and recovery.

Then ask yourself:

• Can I reach this division while eating enough to train?
• Am I able to maintain my strength and energy?
• Will I need to cut water aggressively to make weight?
• How much time do I have before the weigh-in?
• Have I competed comfortably near this weight before?
• Would the next higher division let me perform better?

If the plan depends on severe dehydration or extreme food restriction, reconsider the target.

Safety: Rapid weight cutting can affect your health and performance. Work with a qualified sports dietitian or healthcare professional if you are unsure whether a cut is appropriate.

Moving up a division is a reasonable choice when a lower weight interferes with training, recovery, or normal eating.

For amateur athletes, especially those still growing, long-term development matters more than forcing a particular number on the scale.

What to do next

Once you know the correct boxing weight class, compare your current weight with its official limit.

Use the weight cut calculator to see the size of the gap. Then consider whether your timeline allows a gradual approach without extreme methods.

The CutCoach app builds a day-by-day plan for calories, water, meals, and refueling after the scale using your weight, weight class, and weigh-in date. It is available on iPhone and Android.

Before your fight, confirm your division, weigh-in schedule, and any additional scale checks with your coach or event organizer.

Your goal is not just to make weight. It is to arrive ready to box.