Buying the wrong size boxing gloves wastes money and risks injury. It happens every week in gyms across the UK. Fighters turn up to their first sparring session in 12oz bag gloves, or order online and receive something that fits like a ski boot. The gloves end up unused in a bag in the corner. Meanwhile, hands are unprotected, training partners are unprotected, and a second purchase is already inevitable.
This guide covers everything: the ounce system, the weight charts, the hand measurement method, the gym rules you need to know, and the common mistakes that trip up beginners and intermediate fighters alike. By the time you reach the bottom, you will know exactly what to order.
How Boxing Glove Sizes Work (oz Explained)
Boxing gloves are sized in ounces (oz), which refers to the weight of the glove, not the size of your hand. A 16oz glove weighs 16 ounces per glove. More weight means more padding material, which means more protection for both you and whoever you are hitting.
This trips a lot of people up. You might assume sizing works like shoe sizing, something tied directly to your hand dimensions. It does not. The oz measurement reflects how much padding surrounds your knuckles and the back of your hand. A heavier glove offers more cushioning on impact, which is why sparring gloves are always heavier than competition gloves.
The common sizes you will encounter, from lightest to heaviest:
- 4oz and 6oz: Children's gloves and competition gloves for lighter weight classes
- 8oz: Professional competition (varies by weight class, as governed by the BBBofC)
- 10oz: Competition and pad/bag work for lighter fighters
- 12oz: Bag and pad work for lighter to mid-weight adults
- 14oz: Versatile training glove; pad work, bags, and sparring for lighter fighters
- 16oz: The standard sparring glove at most UK gyms
- 18oz and 20oz: Heavy sparring gloves, used by heavier fighters or those who want maximum protection
The relationship between oz and hand size is indirect. A smaller person using 16oz gloves will find them bulkier and heavier on the arm. A larger person using 12oz will find they are under-padded for contact work. That is why body weight is the primary guide, with hand circumference as the fine-tuning tool.
Boxing Glove Size Chart by Body Weight
Use this as your starting point. Find your body weight, then cross-reference with what type of training you are doing.
| Body Weight | Pad / Bag Work | Sparring | Competition |
|---|---|---|---|
| Under 30kg (children) | 4oz | 6oz | 4oz |
| 30–40kg (children/juniors) | 6oz | 8oz | 6oz |
| 40–50kg | 8–10oz | 12oz | 8–10oz |
| 50–60kg | 10oz | 14oz | 10oz |
| 60–70kg | 10–12oz | 14–16oz | 10oz |
| 70–80kg | 12–14oz | 16oz | 10oz |
| 80–90kg | 14oz | 16oz | 10oz |
| 90–100kg | 14–16oz | 16oz | 10oz |
| 100kg+ | 16oz | 16–18oz | 10oz |
A few things to note about this table. First, competition glove weights are governed by weight class rules. The oz is not your choice, it is dictated by the sanctioning body. Second, sparring sizes in UK gyms almost universally default to 16oz regardless of weight, with some allowance for fighters under 60kg to use 14oz. Third, if you are buying one pair to do everything, scroll down to the training type section for a clear recommendation.
Glove Size by Training Type
Your body weight tells you where to start. What you are actually doing in the gym determines where you land.
Bag and Pad Work
For hitting the heavy bag and working pads with a coach or training partner, 10oz to 14oz is the standard range for adults. Lighter gloves let you move your hands faster and feel the connection more directly. You do not need the same level of padding as sparring because you are not hitting a live human head.
Most adult men between 70kg and 90kg will be comfortable in 14oz for bag and pad work. Women and lighter fighters often prefer 10oz or 12oz for the same work.
Sparring
16oz is the default for sparring at most UK gyms. It is not a suggestion. It is gym policy in the vast majority of clubs, and for good reason. More padding protects your training partner and prolongs your own career. Even if you are technically light enough to spar in 14oz, most coaches will still push you toward 16oz.
Check the Sparring Gloves collection if sparring is your primary use case. Sparring-specific gloves have different internal construction to bag gloves. They are designed to distribute impact rather than maximise punching feel.
Competition
In amateur competition through England Boxing, glove weight is assigned by your weight class. You do not get to choose. In professional boxing, the British Boxing Board of Control (BBBofC) mandates 8oz gloves for welterweight and below, and 10oz for those above. These are not the gloves you train in. They are fight-night specific.
The One Versatile Pair
If you are new, buying on a budget, or just want one pair that covers most of your training, 14oz is the most practical choice for fighters between 65kg and 85kg. It is heavy enough to be acceptable for light sparring at many clubs and works well on bags and pads. For serious sparring, most gyms will still want 16oz, but 14oz covers the vast majority of your daily training.
Browse the Boxing Gloves UK collection for options across all sizes. Free UK shipping is included on orders over the qualifying amount.
How to Measure Your Hand for Boxing Gloves
The weight chart handles 90% of sizing decisions. Hand measurement handles the other 10%, specifically whether you fall between sizes or have notably wide or narrow hands.
What you need: A fabric tape measure or a piece of string and a ruler.
Step 1: Measure your hand circumference. Make a loose fist. Wrap the tape measure around your dominant hand at the widest point, across the knuckles, not including the thumb. This is your knuckle circumference.
Step 2: Measure your hand length. Open your hand flat. Measure from the base of your wrist (where wrist meets palm) to the tip of your middle finger.
What the numbers mean:
| Knuckle Circumference | Hand Length | Likely Glove Fit |
|---|---|---|
| Under 17cm | Under 17cm | Small: 10oz or below for training |
| 17–19cm | 17–19cm | Medium: 12–14oz range |
| 19–22cm | 19–21cm | Large: 14–16oz range |
| Over 22cm | Over 21cm | Extra Large: 16oz+ |
These measurements are a secondary check, not a primary guide. If the weight chart says 14oz but your hands are unusually large, that measurement supports going to 16oz. If your hands are small for your weight, it might support staying at 12oz for training purposes.
One critical note: always account for hand wraps. When you try on gloves, or when you visualise fit, factor in that Hand Wraps UK add meaningful bulk to your hands. A glove that fits snugly on a bare hand will likely feel tight once you have wrapped. Quality gloves are engineered with this in mind, but it is still worth checking. See How to Wrap Hands for the correct wrapping technique that will affect how much volume your wraps add.
10oz vs 12oz vs 14oz vs 16oz: Direct Comparison
These are the four sizes that cover the overwhelming majority of adult recreational and competitive training in the UK. Here is what you need to know about each.
10oz Boxing Gloves
Best for: Lighter fighters (under 60kg), women doing pad and bag work, competition preparation.
10oz gloves are fast on the hand and deliver clean feedback on impact. They are not a sparring glove for most people. There simply is not enough padding to safely spar with an adult partner. For solo bag work and pad sessions, they are excellent for fighters in the right weight range.
12oz Boxing Gloves
Best for: Fighters between 55–70kg doing bag and pad work; women over 60kg.
12oz sits in a sensible middle ground. It has more padding than 10oz without the bulk of 14oz. For lighter adults, 12oz is a practical everyday training glove.
14oz Boxing Gloves
Best for: Fighters between 65–85kg; beginners wanting a versatile first pair; light sparring at clubs that permit it.
Browse the 14oz Boxing Gloves page for current options. 14oz is probably the most commonly purchased size in UK boxing gyms. It is the versatile workhorse. Enough padding for reasonably safe contact, light enough to use all session without fatiguing. For many fighters, it is the only pair they own.
16oz Boxing Gloves
Best for: Sparring for almost all weight classes; heavier fighters (85kg+) for all training; anyone whose gym mandates 16oz.
Browse the 16oz Boxing Gloves page. 16oz gloves are the standard for a reason. The increased padding dramatically reduces the risk of cuts, concussions, and hand injuries during sparring. If you are doing regular contact work, 16oz is worth the investment as a dedicated sparring glove even if you have lighter gloves for bag work.
For a detailed breakdown of the differences and which is right for your situation, read the full 14oz vs 16oz Boxing Gloves comparison guide.
What Size Boxing Gloves for Kids?
Children's boxing and Muay Thai training is built on technique, coordination, and fun, not power. Glove sizing for juniors follows a simpler age and weight framework, and the padding priorities are the same: protect the hands and the training partner.
Junior Sizing Guide:
| Age | Body Weight | Recommended Size |
|---|---|---|
| 4–7 years | Under 25kg | 4oz |
| 6–9 years | 25–30kg | 4–6oz |
| 8–12 years | 30–40kg | 6oz |
| 11–14 years | 40–50kg | 6–8oz |
| 14–16 years | 50–60kg | 10–12oz |
4oz gloves are the standard entry point for young children beginning boxing training. They are sized for small hands and light bodies, with adequate padding for junior-level pad work. See the Kids 4oz Boxing Gloves page for current options.
A word on safety for juniors: children should never spar in gloves smaller than those recommended in the table above. A child punching with under-padded gloves risks hand injury, and their partner risks unnecessary impact. When in doubt, go one size up.
For beginners starting their child in the sport, the Boxing Starter Kits & Training Sets collection bundles gloves with essential items to reduce the guesswork.
What Size Boxing Gloves Do UK Gyms Require?
Walk into virtually any boxing or Muay Thai gym in the UK and you will find a laminated sign, or a coach who will tell you very clearly, that 16oz is the mandatory minimum for sparring. This is standard practice, not a suggestion.
Here is why: sparring injuries happen most frequently when fighters underestimate how much damage they are inflicting. 16oz gloves create a margin of safety that protects both fighters and allows them to train consistently over months and years rather than being sidelined with cuts and concussions.
Some gyms make allowances:
- 14oz may be permitted for fighters under 60kg sparring against similarly sized partners, at the coach's discretion
- Some Muay Thai gyms run slightly different standards to boxing clubs. Check specifically with your club
- Junior sparring will always use size-appropriate gloves as outlined in the children's section above
If you are new to a gym, ask before you buy. Most coaches would rather you bought the right pair first time than upgrade after two months. The answer will almost always be 16oz for sparring and "whatever you like" for bag and pad work.
Common Sizing Mistakes and How to Avoid Them
Buying Too Small
This is the most common mistake. Fighters assume lighter gloves are better because they want speed, they have seen professionals use 8oz or 10oz in fights, or they simply underestimate how much padding matters during contact work. Training gloves and fight gloves are different tools for different jobs. Use fight-weight gloves for fighting; use properly padded training gloves for training.
Buying Too Large
Less common but still a problem. Oversized gloves do not fit securely around the hand and wrist. You lose control of your technique, the wrist support does not function properly, and heavy gloves fatigue lighter fighters faster than their training demands. An 80kg woman does not need 18oz gloves for bag work.
Buying One Pair and Expecting It to Do Everything
A 16oz sparring glove is not ideal for high-volume bag work. It is heavier and designed for impact distribution rather than punching feedback. Serious fighters typically have two pairs: a lighter glove for bags and pads, and a 16oz for sparring. It is an investment worth making once you are training regularly.
Ignoring Hand Shape
Standard sizing tables work for most hands. If your hands are notably wide or narrow, your knuckles are unusually prominent, or you have had hand injuries that affect the anatomy, spend time with the hand measurement section above and consider trying gloves on before committing. Many fighters with wide hands prefer gloves with a rounder, more squared knuckle box. This varies by brand and model, not just size.
Not Accounting for Wraps
Covered above but worth repeating here. Try gloves on, or visualise them, with wraps factored in. A glove that fits snugly on a bare hand will likely feel restrictive once wrapped. This is especially relevant if you use Mexican-style boxing wraps, which add more bulk than standard cotton wraps.
Frequently Asked Questions
Q: What size boxing gloves do I need for an 80kg man?
At 80kg, 14oz gloves are suitable for pad work and bag training. For sparring, 16oz is the standard requirement at most UK gyms. If you want one pair for everything, go with 16oz. The extra padding is always welcome.
Q: Do women need different size boxing gloves?
Women should size based on body weight just like men. Women under 55kg often find 10oz gloves suitable for pad work and 14oz for sparring. Women over 55kg typically follow the same sizing as men of equivalent weight. The main practical difference is that some brands offer gloves with a smaller cuff circumference to accommodate narrower wrists. It is worth checking fit when possible.
Q: Should I size up or down if I am between sizes?
If between sizes for training gloves, size up for better protection. For competition gloves (where weight class rules dictate the oz), you must use the specified size. For sparring, always err on the side of more padding.
Q: Do hand wraps affect boxing glove sizing?
Yes, slightly. Always try on or consider your gloves with wraps on, as wraps add volume to your hand. A glove that fits perfectly on a bare hand may feel tight with wraps. Most quality gloves are designed with wraps in mind, but the bulk added by thicker or longer wraps is worth accounting for. See How to Wrap Hands for more on wrapping technique.
Q: What size gloves do professional boxers use in the UK?
In professional boxing in the UK, glove sizes are set by the British Boxing Board of Control. Fighters at welterweight and below typically use 8oz gloves, while those above welterweight use 10oz. These are purpose-built competition gloves, completely different in construction to the training gloves you will use daily. Do not try to replicate professional fight conditions in gym training; it defeats the purpose of the heavier, protective training glove.
Find Your Size and Get Training
You now have everything you need to buy with confidence. Use the weight chart as your anchor, cross-reference with your training type, and use hand measurements to settle any borderline decisions. When in doubt about sparring, go 16oz. When in doubt about buying a first pair, talk to your coach, or start with Boxing Starter Kits & Training Sets which takes the guesswork out of the full kit setup.
Browse the full Boxing Gloves UK collection, which covers every size from children's 4oz through to heavy 18oz sparring gloves. Free UK shipping is available, and the range includes options at every budget from solid entry-level pairs to professional-grade leather gloves built to last.
If you are still not certain, the Best Boxing Gloves UK guide walks through specific product recommendations by use case, so you are not just buying the right size, you are buying the right glove.
