Boxing gloves are sold by weight. The ounces are padding: more padding protects a sparring partner, less is faster on the bag and in a bout. Pick the weight from bodyweight and use, then check the hand circumference band for the fit of the cuff. Rival’s adult sparring chart puts 90–120 lb at 12 oz, 120–150 lb at 14 oz, 150–185 lb at 16 oz, 185+ lb at 18 oz.
Sparring, bag and bout
Sparring wants the heavy glove: 14 to 18 oz for adults, and most adults spar in 16 oz (a 165 lb boxer in 16 oz). Bag and pad work is where a 12 or 14 oz glove is comfortable. Amateur bouts use 10 or 12 oz by weight class, and professional bouts 8 or 10 oz: Nevada requires 8 oz up to 135 lb and 10 oz above, with 8 oz allowed to 147 lb if both boxers agree.
MMA gloves are open-fingered: the Unified Rules require at least 4 oz, most commissions allow 4 to 6 oz in competition, and amateurs wear at least 6 oz. Sparring in MMA uses heavier hybrid gloves.
Wraps take up room
Rival and Fairtex chart the bare hand, measured round the knuckles with the thumb out. Wraps then fill part of the glove: a 120-inch wrap less than a 180-inch one. When the bare hand sits at the top of its band and wraps go on, go one rung up.
Brand cuts differ inside a size: when the sizer lands between two sizes, or on the edge of a band, try both.
Lace-up or hook-and-loop
Lace-up gloves fit closer at the wrist and are common for bouts and serious sparring, but need someone to tie them; hook-and-loop gloves are quicker for bag work and classes. A lace-up glove can run a little snugger for the same ounce weight, which matters at the top of a hand band.
Why the screen can be trusted
A browser does not know how big its pixels are, so the sizer starts from a table of 114 phones, tablets, laptops and monitors matched to your screen’s size and pixel ratio, an estimate good to about five percent. Laying a coin or a bank card on the glass and matching its outline replaces the estimate with a measurement good to a fraction of a percent, saved for this screen only.
Browser zoom is corrected automatically from the pixel ratio; pinch zoom is flagged, because nothing drawn is true size until it is undone.
pixels per mm = CSS px across the card ÷ 85.60 mm ID-1 card: 85.60 × 53.98 mm (ISO/IEC 7810)