How does Asics sizing convert between US, UK and EU?

Use the men's chart above: find your US size and read across to the UK, EU and foot-length equivalent. Asics running shoes typically run a half size smaller than casual shoes — brand recommends sizing up ½ from your casual size.

Is the Asics size chart the same as Nike or Adidas?

Not exactly — each brand cuts its lasts a little differently, so the same US number maps to a slightly different foot length. Use our converter to translate your size from another brand to Asics.

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Asics Shoe Size Chart

Convert Asics men's shoe sizes between US, UK, EU and foot length. The chart below is anchored on Asics's official sizing, with a centimeter/inch toggle for foot length. For another brand or gender, use the converter; to know if a specific model runs big or small, see the fit guides.

Foot length units:

Asics men's size chart

US Men	UK	EU	Foot length (cm)
3.5	2.5	35.5	22.25
4	3	36	22.5
4.5	3.5	37	23
5	4	37.5	23.5
5.5	4.5	38	24
6	5	39	24.5
6.5	5.5	39.5	25
7	6	40	25.25
7.5	6.5	40.5	25.5
8	7	41.5	26
8.5	7.5	42	26.5
9	8	42.5	27
9.5	8.5	43.5	27.5
10	9	44	28
10.5	9.5	44.5	28.25
11	10	45	28.5
11.5	10.5	46	29
12	11	46.5	29.5
12.5	11.5	47	30
13	12	48	30.5
14	13	49	31
15	14	50.5	32
16	15	51.5	33

Asics conversion charts

Convert your size to Asics

Pick the brand and size you already own to see your Asics equivalent:

From

Brand Gender Measure by Your size

To

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Select your size to see the conversion.

The converter anchors on foot length in cm for the most accurate cross-brand result.

Asics fit guides

Does a specific Asics model run big or small? These guides tell you whether to size up, down, or stay true:

Asics Gel-1130 fit guide True to size
Asics Gel-Kayano 14 fit guide True to size

Shopping for children? See the Asics kids' shoe size chart — baby, toddler, little kid and youth sizes.

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