adidas to New Balance Shoe Size Conversion

Switching from adidas to New Balance? adidas runs small and New Balance runs true to size, so the size you order changes. Here's the full chart.

Reviewed by the 247Sizing teamLast updated: 12 August 2026

adidas runs 0.5 size larger than New Balance, so you may need to size down when switching.

Size up 0.5 moving to New Balance

New Balance runs smaller — order half a size larger than your adidas size.

Find your adidas size on the left, read across for New Balance:

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

⚠️ Fit varies by model. adidas generally runs about half a size small, particularly lifestyle and Ultraboost models; Sambas and Gazelles run long and narrow. New Balance runs true to size and is one of the best brands for width options (2A to 4E).

New Balance to adidas → · adidas chart · New Balance chart · Brand finder

What is a adidas 10.5 in New Balance?

A adidas 10.5 is about a New Balance 10 — they share a foot length of roughly 27.5 cm (UK 9.5, EU 43.5).

Do adidas and New Balance fit the same?

Not quite — New Balance runs about 0.5 size smaller than adidas.

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