Nike vs ASICS sizing: official chart comparison
Nike US 9 → ASICS US 9. Technical reference; manufacturer labels may differ. Size labels and measured foot length are different quantities. A chart does not establish the fit of every model.
There is no verified brand-wide fit offset or reproducible wearer distribution in this dataset.
How to compare Nike and ASICS sizes
Start with the men's US label on your current shoe, then use the comparison below as a chart reference. Confirm the model and market in each official guide before ordering.
This example uses the nearest published EU label in the ASICS chart. Matching chart references does not prove that the shoes feel the same.
- Nike: official chart — Men's footwear; women's labels refer to the same men's/unisex chart; US. Source checked .
- ASICS: official chart — Men's footwear; Singapore. Source checked .
Select the shoe chart scope in the converter. Women's results use a separately reviewed women's or documented unisex chart; missing scopes stay unavailable. These references do not establish a children's or width conversion.
| Nike US | ASICS US | ASICS UK | ASICS EU | Official source |
|---|---|---|---|---|
| 7 | 7 | 6 | 40 | EU ≈ |
| 8 | 7.5 | 6.5 | 40.5 | EU ≈ |
| 9 | 9 | 8 | 42.5 | EU ≈ |
| 10 | 10 | 9 | 44 | EU ≈ |
| 11 | 11 | 10 | 45 | EU ≈ |
Your foot length, several brands
Use the longer measured foot. Each result belongs to its own manufacturer chart and market. Size labels and measured foot length are different quantities. A chart does not establish the fit of every model.
Example — enter your measurement to update
ASICS
Applies to: Men's footwear · Source market: Singapore
This chart publishes labels only; foot length is unknown.
Official source · Source checked:
Nike
Applies to: Men's footwear; women's labels refer to the same men's/unisex chart · Source market: US
Manufacturer recommends the larger row; lower reference also shown
- US men: 10 · US women: 11.5 · UK: 9 · EU: 44 · CM / JP label: 28 · Foot length (mm): 271
- US men: 9.5 · US women: 11 · UK: 8.5 · EU: 43 · CM / JP label: 27.5 · Foot length (mm): 267
Official source · Source checked:
Nike: Published size chart
Applies to: Men's footwear; women's labels refer to the same men's/unisex chart. Source market: US.
Size labels and measured foot length are different quantities. A chart does not establish the fit of every model.
Applies to
- CM/JP on the shoe box is a size label; it differs from measured foot length.
- Women-specific models require the separate women’s chart.
| UK | Foot length (mm) | US men | US women | EU | CM / JP |
|---|---|---|---|---|---|
| 3 | 216 | 3.5 | 5 | 35.5 | 22.5 |
| 3.5 | 220 | 4 | 5.5 | 36 | 23 |
| 4 | 224 | 4.5 | 6 | 36.5 | 23.5 |
| 4.5 | 229 | 5 | 6.5 | 37.5 | 23.5 |
| 5 | 233 | 5.5 | 7 | 38 | 24 |
| 5.5 | 237 | 6 | 7.5 | 38.5 | 24 |
| 6 | 241 | 6.5 | 8 | 39 | 24.5 |
| 6 | 245 | 7 | 8.5 | 40 | 25 |
| 6.5 | 250 | 7.5 | 9 | 40.5 | 25.5 |
| 7 | 254 | 8 | 9.5 | 41 | 26 |
| 7.5 | 258 | 8.5 | 10 | 42 | 26.5 |
| 8 | 262 | 9 | 10.5 | 42.5 | 27 |
| 8.5 | 267 | 9.5 | 11 | 43 | 27.5 |
| 9 | 271 | 10 | 11.5 | 44 | 28 |
| 9.5 | 275 | 10.5 | 12 | 44.5 | 28.5 |
| 10 | 279 | 11 | 12.5 | 45 | 29 |
| 10.5 | 283 | 11.5 | 13 | 45.5 | 29.5 |
| 11 | 288 | 12 | 13.5 | 46 | 30 |
| 11.5 | 292 | 12.5 | 14 | 47 | 30.5 |
| 12 | 296 | 13 | 14.5 | 47.5 | 31 |
| 12.5 | 300 | 13.5 | 15 | 48 | 31.5 |
| 13 | 305 | 14 | 15.5 | 48.5 | 32 |
| 13.5 | 309 | 14.5 | 16 | 49 | 32.5 |
| 14 | 313 | 15 | 16.5 | 49.5 | 33 |
| 14.5 | 317 | 15.5 | 17 | 50 | 33.5 |
| 15 | 322 | 16 | 17.5 | 50.5 | 34 |
| 15.5 | 326 | 16.5 | 18 | 51 | 34.5 |
| 16 | 330 | 17 | 18.5 | 51.5 | 35 |
| 16.5 | 334 | 17.5 | 19 | 52 | 35.5 |
| 17 | 339 | 18 | 19.5 | 52.5 | 36 |
| 17.5 | 343 | 18.5 | 20 | 53 | 36.5 |
| 18 | 347 | 19 | 20.5 | 53.5 | 37 |
| 18.5 | 351 | 19.5 | 21 | 54 | 37.5 |
| 19 | 355 | 20 | 21.5 | 54.5 | 38 |
| 19.5 | 360 | 20.5 | 22 | 55 | 38.5 |
| 20 | 364 | 21 | 22.5 | 55.5 | 39 |
| 20.5 | 368 | 21.5 | 23 | 56 | 39.5 |
| 21 | 372 | 22 | 23.5 | 56.5 | 40 |
Official source · Size Chart → cm; US - Men, US - Women, UK, CM / JP, EU, Foot Length (cm) · Source checked: .
ASICS: Published size chart
Applies to: Men's footwear. Source market: Singapore.
Size labels and measured foot length are different quantities. A chart does not establish the fit of every model.
Applies to
- Source notation H is transcribed as a half size.
- CM is retained as a chart label; it is not used as measured foot length.
- This is the Singapore chart; regional charts may differ.
| UK | US men | EU | CM |
|---|---|---|---|
| 3 | 4 | 36 | 22.5 |
| 3.5 | 4.5 | 37 | 23 |
| 4 | 5 | 37.5 | 23.5 |
| 4.5 | 5.5 | 38 | 24 |
| 5 | 6 | 39 | 24.5 |
| 5.5 | 6.5 | 39.5 | 25 |
| 6 | 7 | 40 | 25.5 |
| 6.5 | 7.5 | 40.5 | 25.75 |
| 7 | 8 | 41.5 | 26 |
| 7.5 | 8.5 | 42 | 26.5 |
| 8 | 9 | 42.5 | 27 |
| 8.5 | 9.5 | 43.5 | 27.5 |
| 9 | 10 | 44 | 28 |
| 9.5 | 10.5 | 44.5 | 28.25 |
| 10 | 11 | 45 | 28.5 |
| 10.5 | 11.5 | 46 | 29 |
| 11 | 12 | 46.5 | 29.5 |
| 11.5 | 12.5 | 47 | 30 |
| 12 | 13 | 48 | 30.5 |
| 12.5 | 13.5 | 48.5 | 30.75 |
| 13 | 14 | 49 | 31 |
| 13.5 | 14.5 | 49.5 | 31.5 |
| 14 | 15 | 50.5 | 32 |
Official source · Shoe Size Guide → Men's → US / EU / CM / UK · Source checked: .
Nike: Published size chart
Applies to: Women's footwear; cross-labels in Nike's women's chart. Source market: US.
Size labels and measured foot length are different quantities. A chart does not establish the fit of every model.
Applies to
- CM / JP is a box label, not measured foot length.
- US kids cross-labels apply only to the published 2Y–7Y rows; they do not establish equivalent shoe construction or fit.
- Foot length is absent in the source for US women 17.5–22.5 and stays unknown.
- Nike recommends the larger listed size between foot measurements; measure both feet and use the longer measurement.
| UK | Foot length (mm) | US men | US women | EU | CM / JP |
|---|---|---|---|---|---|
| 1.5 | 208 | 2 | 3.5 | 33.5 | 21 |
| 1.5 | 212 | 2.5 | 4 | 34.5 | 21 |
| 2 | 216 | 3 | 4.5 | 35 | 21.5 |
| 2.5 | 220 | 3.5 | 5 | 35.5 | 22 |
| 3 | 224 | 4 | 5.5 | 36 | 22.5 |
| 3.5 | 229 | 4.5 | 6 | 36.5 | 23 |
| 4 | 233 | 5 | 6.5 | 37.5 | 23.5 |
| 4.5 | 237 | 5.5 | 7 | 38 | 24 |
| 5 | 241 | 6 | 7.5 | 38.5 | 24.5 |
| 5.5 | 245 | 6.5 | 8 | 39 | 25 |
| 6 | 250 | 7 | 8.5 | 40 | 25.5 |
| 6.5 | 254 | 7.5 | 9 | 40.5 | 26 |
| 7 | 258 | 8 | 9.5 | 41 | 26.5 |
| 7.5 | 262 | 8.5 | 10 | 42 | 27 |
| 8 | 267 | 9 | 10.5 | 42.5 | 27.5 |
| 8.5 | 271 | 9.5 | 11 | 43 | 28 |
| 9 | 275 | 10 | 11.5 | 44 | 28.5 |
| 9.5 | 279 | 10.5 | 12 | 44.5 | 29 |
| 10 | 283 | 11 | 12.5 | 45 | 29.5 |
| 10.5 | 288 | 11.5 | 13 | 45.5 | 30 |
| 11 | 292 | 12 | 13.5 | 46 | 30.5 |
| 11.5 | 296 | 12.5 | 14 | 47 | 31 |
| 12 | 300 | 13 | 14.5 | 47.5 | 31.5 |
| 12.5 | 305 | 13.5 | 15 | 48 | 32 |
| 13 | 309 | 14 | 15.5 | 48.5 | 32.5 |
| 13.5 | 313 | 14.5 | 16 | 49 | 33 |
| 14 | 317 | 15 | 16.5 | 50 | 33.5 |
| 14.5 | 322 | 15.5 | 17 | 50.5 | 34 |
| 15 | — | 16 | 17.5 | 51 | 34.5 |
| 15.5 | — | 16.5 | 18 | 51.5 | 35 |
| 16 | — | 17 | 18.5 | 52 | 35.5 |
| 16.5 | — | 17.5 | 19 | 52.5 | 36 |
| 17 | — | 18 | 19.5 | 53 | 36.5 |
| 17.5 | — | 18.5 | 20 | 53.5 | 37 |
| 18 | — | 19 | 20.5 | 54 | 37.5 |
| 18.5 | — | 19.5 | 21 | 54.5 | 38 |
| 19 | — | 20 | 21.5 | 55 | 38.5 |
| 19.5 | — | 20.5 | 22 | 55.5 | 39 |
| 20 | — | 21 | 22.5 | 56 | 39.5 |
Official source · Size Chart → US - Women, US - Men, US - Kids, UK, CM / JP, EU; Metric → Foot Length (cm). Public chart payload foot_length_cm in sizeCharts.data. · Source checked: .