ASICS size chart
ASICS’ own size charts cover men’s 4–16, women’s 5–13, toddler K5–K9, little kid K10–K13, big kid 1–7, plus charts for boots, sandals and socks.
ASICS doesn’t publish foot lengths, so its sizes match through the US, UK and EU sizes it prints.
ASICS’ charts at a glance
| Chart | Sizes | Foot lengths |
|---|---|---|
| Men’s | 4–16 | — |
| Women’s | 5–13 | — |
| Toddler | K5–K9 | — |
| Little kid | K10–K13 | — |
| Big kid | 1–7 | — |
| Men’s boots | 8.5–14 | — |
| Men’s sandals | XS–XL | — |
| Unisex socks | XS/S–XL | — |
| Little kid socks | Small–Small | — |
| Big kid socks | Small–Small | — |
Does ASICS run big or small?
ASICS doesn’t publish foot lengths for its adult sizes, so its chart can’t say whether it runs big or small: its sizes match by the US, UK and EU sizes it prints. Size from your foot length, then check the brand’s own chart.
ASICS men’s size chart
| US | UK | EU | CM |
|---|---|---|---|
| 4 | 3 | 36 | 22.5 |
| 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 | 25.5 |
| 7.5 | 6.5 | 40.5 | 25.75 |
| 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 |
| 13.5 | 12.5 | 48.5 | 30.75 |
| 14 | 13 | 49 | 31 |
| 15 | 14 | 50.5 | 32 |
| 16 | 15 | 51.5 | 33 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS women’s size chart
| US | UK | EU | CM |
|---|---|---|---|
| 5 | 3 | 35.5 | 22 |
| 5.5 | 3.5 | 36 | 22.5 |
| 6 | 4 | 37 | 23 |
| 6.5 | 4.5 | 37.5 | 23.5 |
| 7 | 5 | 38 | 24 |
| 7.5 | 5.5 | 39 | 24.5 |
| 8 | 6 | 39.5 | 25 |
| 8.5 | 6.5 | 40 | 25.5 |
| 9 | 7 | 40.5 | 25.75 |
| 9.5 | 7.5 | 41.5 | 26 |
| 10 | 8 | 42 | 26.5 |
| 10.5 | 8.5 | 42.5 | 27 |
| 11 | 9 | 43.5 | 27.5 |
| 11.5 | 9.5 | 44 | 28 |
| 12 | 10 | 44.5 | 28.5 |
| 12.5 | 10.5 | 45 | 28.75 |
| 13 | 11 | 46 | 29 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS toddler size chart
| US | UK | EU | CM |
|---|---|---|---|
| K5 | K4 | 21 | 13 |
| K6 | K5 | 22.5 | 14 |
| K7 | K6 | 23.5 | 15 |
| K8 | K7 | 25 | 15.5 |
| K9 | K8 | 26 | 16 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS little kid size chart
| US | UK | EU | CM |
|---|---|---|---|
| K10 | K9 | 27 | 17 |
| K11 | K10 | 28.5 | 17.5 |
| K12 | K11 | 30 | 18.5 |
| K13 | K12 | 31.5 | 19.5 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS big kid size chart
| US | UK | EU | CM |
|---|---|---|---|
| 1 | K13 | 32.5 | 20 |
| 2 | 1 | 33.5 | 21 |
| 3 | 2 | 35 | 22 |
| 4 | 3 | 36 | 22.5 |
| 5 | 4 | 37.5 | 23.5 |
| 6 | 5 | 39 | 24.5 |
| 7 | 6 | 40 | 25.5 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS men’s boots size chart
| US | UK | EU | CM |
|---|---|---|---|
| 8.5 | 7.5 | 42 | 26 |
| 9 | 8 | 42.5 | 26.5 |
| 9.5 | 8.5 | 43.5 | 27 |
| 10 | 9 | 44 | 27.5 |
| 10.5 | 9.5 | 44.5 | 28 |
| 11 | 10 | 45 | 28.25 |
| 11.5 | 10.5 | 46 | 28.5 |
| 12 | 11 | 46.5 | 29 |
| 13 | 12 | 48 | 30 |
| 14 | 13 | 49 | 31 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS men’s sandals size chart
| Size | US | CM |
|---|---|---|
| XS | 3.5 - 5.0 | 22.5 - 23.5 |
| S | 5.5 - 7.0 | 24.0 - 25.0 |
| M | 7.5 - 9.0 | 25.5 - 27.0 |
| L | 9.5 - 11.0 | 27.5 - 28.5 |
| XL | 11.5 - 13.0 | 29.0 - 30.5 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS unisex socks size chart
| Size | US |
|---|---|
| XS/S | 4-8 |
| M/L | 8-11 |
| XL | 12+ |
| S | 6-7 |
| M | 7-9 |
| L | 9.5-11.5 |
| XL | 11.5-13 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS little kid socks size chart
| Size | US |
|---|---|
| Small | K10 - K13 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
ASICS big kid socks size chart
| Size | US |
|---|---|
| Small | 1 - 7 |
As printed on ASICS’ chart on asics.com (checked 2026-10-21).
Find your ASICS size from your foot length
shoesize.app is not affiliated with ASICS. ASICS’ name is used only to identify its own size charts, linked above. An estimate to help you choose: fit varies by model. Not medical advice.