A 9.5" (241 mm) hand round the palm is EN size 9 (L), a women's XL and a L exam glove; in golf outside FootJoy’s men’s chart, goalkeeper size 11 and Alpinestars 2XL. Flat, it measures about 100 mm across the knuckles.
Where 9.5" sits on the EN scale
EN ISO 21420 sizes are one inch of circumference apart, so a 9.5-inch hand sits halfway between sizes 9 and 10. Unisex work and sports gloves round it to 9 (L); makers that sell half sizes (dress leather, goalkeeper, surgical) make a 9.5.
Between two sizes, a tight-fitting glove (exam, golf, race) usually goes to 9, an insulated or lined one to 10.
9.5" × 25.4 = 241 mm round flat width ≈ 241 ÷ 2.42 = 100 mm (men)
Golf: the length decides Cadet
A 9.5" hand is above FootJoy’s 2XL band; look for a 3XL or an extended size.
Sport, ride and winter
Goalkeeper gloves add an inch: 9.5" rounds to 10 and becomes size 11 (Reusch’s half-size chart: 9.5). Alpinestars’ men’s chart puts 24.1 cm at 2XL, on the edge of a band: try both. Hestra winter gloves are a 9 bare, 10 over a 1 mm liner.
For boxing, 9.5" falls in Rival’s 18 oz hand band (185–up lb), but glove weight is chosen by bodyweight and use first; the hand only says how the cuff fits.
One half size down, 9" is EN 9 and goalie 10. One up, 10" is EN 10 and goalie 11.