WITHIN · SIZES · Updated 10 October 2026
EU 40.5 in US shoe sizes, for men and women
What EU 40.5 is in US sizes for men and for women, and what 13 makers' own charts print at EU 40.5.
- Main chart: Nike, read 9 October 2026
- Charts compared: 19 charts from 13 makers
- Read: 8 September 2026 to 10 October 2026
EU 40.5 in every system
Men's shoe sizes
| US men | US women | UK | EU | Japan (box label) (cm) | Foot length (cm) | Foot length (in) |
|---|---|---|---|---|---|---|
| 7.5 | 9 | 6.5 | 40.5 | 25.5 | 25 | 9 13/16 |
Source: Nike (nike.com), read 9 October 2026.
Women's shoe sizes
| US women | US men | UK | EU | Japan (box label) (cm) | Foot length (cm) | Foot length (in) |
|---|---|---|---|---|---|---|
| 9 | 7.5 | 6.5 | 40.5 | 26 | 25.4 | 10 |
Source: Nike (nike.com), read 9 October 2026.
EU 40.5 at each maker
Of the 12 makers whose charts print EU 40.5 with a men's US size, 10 say US 7.5 and 2 US 8.
Among the 8 that print EU 40.5 with a women's US size, 4 say US 9, 3 US 10.5 and 1 US 9.5.
- Men's US 7.5 at Nike, Kith, Represent, Maison Margiela, Valentino, Givenchy and 4 more
- Men's US 8 at The North Face and Vans
- Women's US 9 at Nike, On, New Balance and ASICS
- Women's US 9.5 at Vans
- Women's US 10.5 at Maison Margiela, MM6 Maison Margiela and Valentino
| Maker | US men's | US women's | UK | Japan (cm) | Foot length (cm) | Chart | Source |
|---|---|---|---|---|---|---|---|
| ASICS | 7.5 | 6.5 | ASICS men's shoes | ASICS, 8 September 2026 | |||
| ASICS | 9 | 7 | ASICS women's shoes | ASICS, 8 September 2026 | |||
| Givenchy | 7.5 | 6.5 | 26 | Givenchy men's sneakers | Givenchy, 10 October 2026 | ||
| Kith | 7.5 | 7 | 25.5 | Kith men's shoe sizes | Kith, 9 October 2026 | ||
| Maison Margiela | 7.5 | 6.5 | 25.5 | 26.3 | Maison Margiela men's Replica sneakers | Maison Margiela, 10 October 2026 | |
| Maison Margiela | 10.5 | 7.5 | 27.5 | 26.3 | Maison Margiela women's Tabi ankle boots | Maison Margiela, 10 October 2026 | |
| MM6 Maison Margiela | 10.5 | 7.5 | 27.5 | MM6 women's sneakers | MM6 Maison Margiela, 10 October 2026 | ||
| New Balance | 7.5 | 7 | 25.5 | New Balance men's shoes | New Balance, 8 September 2026 | ||
| New Balance | 9 | 7 | 26 | New Balance women's shoes | New Balance, 8 September 2026 | ||
| Nike | 7.5 | 6.5 | 25.5 | 25 | Men's shoe sizes | Nike, 9 October 2026 | |
| Nike | 9 | 6.5 | 26 | 25.4 | Women's shoe sizes | Nike, 9 October 2026 | |
| On | 7.5 | 7 | 25.5 | On men's shoe sizes | On, 10 October 2026 | ||
| On | 9 | 7 | 26 | On women's shoe sizes | On, 10 October 2026 | ||
| Represent | 7.5 | 6.5 | 25.7 | Represent men's shoe sizes | Represent, 9 October 2026 | ||
| The North Face | 8 | 7 | 26 | The North Face men's shoe sizes, from END. | END., 10 October 2026 | ||
| UGG | 7.5 | 6.5 | 25.5 | UGG men's shoe sizes, from END. | END., 10 October 2026 | ||
| Valentino | 7.5 | 6.5 | 25.5 | 26 | Valentino men's shoes | Valentino, 10 October 2026 | |
| Valentino | 10.5 | 7.5 | 27.5 | 26.3 | Valentino women's shoes | Valentino, 10 October 2026 | |
| Vans | 8 | 9.5 | 7 | 26 | 26 | Vans shoe sizes | Vans, 10 October 2026 |
Foot length and how to measure
On Nike's charts, EU 40.5 fits a foot 25 cm long on the men's chart and 25.4 cm on the women's.
Where a maker prints a foot length for EU 40.5, it runs from 25 cm at Nike to 26.3 cm at Maison Margiela.
To measure, stand on a sheet of paper, mark your heel and the tip of your longest toe, and measure between the marks. Do both feet and use the longer one.
The sizes either side
Shop in your size
Every piece on within shows the size its boutique printed and how many are left in it.
Each maker's full size chart
More on sizing
- Designer shoe sizes: what runs small, with each maker's own chart
- Shoe construction: what resoles and what will not
- How designer sizing runs, brand by brand
- What a 38 is, and whether designer shoes run big or small
- Guidi sizing: which boots fit one size smaller
- Tabi sizing and how to measure for Margiela boots
The full chart
Sources
- Nike: Nike men's shoe sizes in US men's, US women's, UK, EU and Japanese sizes with foot length in cm and inches, and how to measure a foot. nike.com, read 9 October 2026.
- Nike: Nike women's shoe sizes in US women's, US men's, UK, EU and Japanese sizes with foot length in cm and inches. nike.com, read 9 October 2026.
- Kith: Kith's footwear size chart: men's and women's US, UK, EU and JP sizes, and women's to men's sizes. kith.com, read 9 October 2026.
- Represent: Studio Sneaker page: UK, US and EU sizes with foot length in cm. representclo.com, read 9 October 2026.
- Maison Margiela: Size guide on a men's Replica sneaker page: EU sizes 39 to 49 against US, UK, Japan and Korea, with foot length. maisonmargiela.com, read 10 October 2026.
- Maison Margiela: Size guide on a women's Tabi ankle boot page: EU sizes 35 to 42 against US, UK, Japan and Korea, with foot length. maisonmargiela.com, read 10 October 2026.
- MM6 Maison Margiela: Size guide on a women's Anatomic sneaker page: EU sizes 35 to 42 against US, UK, Japan and Korea, with foot length. maisonmargiela.com, read 10 October 2026.
- Valentino: Valentino's own men's size guide: shoes with foot length, clothes with chest, waist and hips, and belts in centimetres and inches. valentino.com, read 10 October 2026.
- Valentino: Valentino's own women's size guide: shoes with foot length, clothes with bust, waist and hips, and belts. valentino.com, read 10 October 2026.
- Givenchy: Size conversion guide on a men's Yard sneaker page: Givenchy sizes 39 to 46.5 against UK, US, Japan and Korea. givenchy.com, read 10 October 2026.
- END.: END.'s size guide on its The North Face Glenclyffe Alpine page: UK, US, EU and Japan. endclothing.com, read 10 October 2026.
- Vans: Unisex shoe chart: US men's, US women's, US boys', UK, EU, Japan and foot length in cm. vans.com, read 10 October 2026.
- END.: The UGG size conversion END. prints on its UGG Tasman II slippers page: UK, US, EU and Japan. endclothing.com, read 10 October 2026.
- On: Men's shoe size guide on the Cloudtilt page: US, UK, EU, Japan, Mexico and Brazil sizes, and the fit line. on.com, read 10 October 2026.
- On: Women's shoe size guide on the Cloudrunner 3 Max page: US, UK, EU, Japan, Mexico and Brazil sizes, and the fit line. on.com, read 10 October 2026.
- New Balance: New Balance's own shoes chart with foot length. newbalance.com, read 8 September 2026.
- ASICS: ASICS's own shoes chart, labels only. asics.com, read 8 September 2026.