Under Armour

Our tool compares official Under Armour size charts to find your perfect size. No measuring needed.

Foot measurement
Measure your foot length in millimeters
mm
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All Under Armour Model Specific Sizing Guides

Under Armour :: Generic :: male

Unsure about your size? Find your size or check out our detailed guide on how to measure your feet.

Fit Type: True to size

Foot Length (mm) EU US Mondopoint UK Japan (cm) China (mm) Korea (mm)
254 40.0 7.0 25.0 6.0 25.0 250.0 250.0
258 40.5 7.5 25.5 6.5 25.5 255.0 255.0
261 41.0 8.0 26.0 7.0 26.0 260.0 260.0
268 42.0 8.5 26.5 7.5 26.5 265.0 265.0
273 42.5 9.0 27.0 8.0 27.0 270.0 270.0
278 43.0 9.5 27.5 8.5 27.5 275.0 275.0
282 44.0 10.0 28.0 9.0 28.0 280.0 280.0
286 44.5 10.5 28.5 9.5 28.5 285.0 285.0
290 45.0 11.0 29.0 10.0 29.0 290.0 290.0
294 45.5 11.5 29.5 10.5 29.5 295.0 295.0
298 46.0 12.0 30.0 11.0 30.0 300.0 300.0
302 47.0 12.5 30.5 11.5 30.5 305.0 305.0
305 47.5 13.0 31.0 12.0 31.0 310.0 310.0
308 48.0 13.5 31.5 12.5 31.5 315.0 315.0
305 48.5 14.0 32.0 13.0 32.0 320.0 320.0
310 49.0 14.5 32.5 13.5 32.5 325.0 325.0
311 49.5 15.0 33.0 14.0 33.0 330.0 330.0
333 50.0 15.5 33.5 14.5 33.5 335.0 335.0
337 50.5 16.0 34.0 15.0 34.0 340.0 340.0

Based On: Under Armour :: Generic :: male

Last updated: 2025-11-26 20:18:30

It depends on the model. Under Armour fit varies between styles, so a single verdict for the whole brand would be misleading, and we only publish a fit verdict where we have measured one. The dependable way to answer it for the pair you are buying is to work from a shoe you already own and know fits: enter it above and we will tell you which Under Armour size matches it.
Start from a shoe you already own that fits, rather than from your usual number. Enter it above and we will convert through foot length to the matching Under Armour size, which is the part that carries across brands. The EU to US offset is not the same for every brand, so a rule of thumb learned elsewhere will not hold here.
Not directly, because a size label means whatever the brand decides it means. A Nike 42 and an Adidas 42 are cut for different foot lengths, and so is a Under Armour 42. Foot length is the common unit, which is why our comparison works from the measurements behind each brands chart rather than from the number printed on the box.

Under Armour is an American sports equipment company known for performance athletic footwear and apparel. The brand focuses on innovative materials and technology for various sports and training activities.

Under Armour shoes typically run true to size, with a snug performance fit in their training and running shoes. Basketball shoes may fit slightly narrow for a locked-in feel.

Stick with your normal athletic shoe size for Under Armour. Their running shoes are designed for a secure fit, so if you prefer a roomier toe box, consider going up half a size.