Under Armour to Dr. Martens Shoe Size Conversion

Switching from Under Armour to Dr. Martens? Under Armour runs small and Dr. Martens runs large, so the size you order changes. Here's the full chart.

Reviewed by the 247Sizing teamLast updated: 12 August 2026

Under Armour runs 1 size larger than Dr. Martens, so you may need to size down when switching.

Size up 1 moving to Dr. Martens

Dr. Martens runs smaller — order half a size larger than your Under Armour size.

Find your Under Armour size on the left, read across for Dr. Martens:

Under Armour size	Dr. Martens size	UK	EU	Foot (cm)
6.5	5.5	5.5	37	23.5
6.5	5.5	5.5	37.5	23.9
7	6	6	38	24.3
7.5	6.5	6.5	38.5	24.7
8	7	7	39.5	25.1
8	7	7	40	25.5
8.5	7.5	7.5	41	25.9
9	8	8	41.5	26.3
9.5	8.5	8.5	42.5	26.7
10	9	9	43	27.1
10.5	9.5	9.5	43.5	27.5
11	10	10	44	27.9
11.5	10.5	10.5	44.5	28.3
12	11	11	45.5	28.7
12.5	11.5	11.5	46	29.1
13	12	12	47	29.5
13.5	12.5	12.5	47.5	29.9
14	13	13	48	30.3
14	13	13	48.5	30.7
14.5	13.5	13.5	49	31.1
15	14	14	49.5	31.5

⚠️ Fit varies by model. Under Armour tends to run about half a size small, especially in performance trainers. Dr. Martens runs about half to a full size large and has no half sizes — size down to the nearest whole.

Dr. Martens to Under Armour → · Under Armour chart · Dr. Martens chart · Brand finder

What is a Under Armour 10.5 in Dr. Martens?

A Under Armour 10.5 is about a Dr. Martens 9.5 — they share a foot length of roughly 27.5 cm (UK 9.5, EU 43.5).

Do Under Armour and Dr. Martens fit the same?

Not quite — Dr. Martens runs about 1 size smaller than Under Armour.

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