within · Sizes · updated 11 October 2026
US shoe size 16.5 in EU, UK and Japanese sizes
What a US 16.5 is in EU, UK and Japanese sizes for men and for women, and what 5 makers' own charts print at a 16.5.
- Main chart: Nike, read 9 October 2026
- Foot length: 32.6 cm for a men's 16.5, 31.7 cm for a women's 16.5, on Nike's charts
- Charts compared: 6 charts from 5 makers
- Read: 8 September 2026 to 11 October 2026
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Women's US 16.5
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Every piece on within shows the size its boutique printed and how many are left in it.
US 16.5 in every system
Men's shoe sizes
| US men | US women | UK | EU | Japan (box label) (cm) | Foot length (cm) | Foot length (in) |
|---|---|---|---|---|---|---|
| 16.5 | 18 | 15.5 | 51 | 34.5 | 32.6 | 12 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) |
|---|---|---|---|---|---|---|
| 16.5 | 15 | 14 | 50 | 33.5 | 31.7 | 12 1/2 |
Source: Nike (nike.com), read 9 October 2026.
Men's US 16.5 at each maker
Of the 2 makers whose charts print a men's US 16.5, 1 says EU 50 and 1 EU 51.
- EU 50 at Gucci
- EU 51 at Nike
| Maker | EU | US women's | UK | Japan (cm) | Foot length (cm) | Chart | Source |
|---|---|---|---|---|---|---|---|
| Dior | 15.5 | 34.5 | 32.5 | Dior men's shoes | Dior, 10 October 2026 | ||
| Gucci | 50 | 16 | 35 | Gucci men's shoes | Gucci, 10 October 2026 | ||
| Nike | 51 | 18 | 15.5 | 34.5 | 32.6 | Men's shoe sizes | Nike, 9 October 2026 |
Women's US 16.5 at each maker
All 3 makers' charts here that print a women's US 16.5 say EU 50.
In UK sizes it is most often 15.5 for men and 14 for women. If your 16.5 is a UK size, it is most often EU 52.
- EU 50 at Nike, Converse and New Balance
| Maker | EU | US men's | UK | Japan (cm) | Foot length (cm) | Chart | Source |
|---|---|---|---|---|---|---|---|
| Converse | 50 | 15 | 14 | 33 | Converse standard shoe sizes | Converse, 11 October 2026 | |
| New Balance | 50 | 15 | 14.5 | 33 | New Balance men's shoes | New Balance, 8 September 2026 | |
| Nike | 50 | 15 | 14 | 33.5 | 31.7 | Women's shoe sizes | Nike, 9 October 2026 |
Foot length and how to measure
On Nike's charts, a men's 16.5 fits a foot 32.6 cm long and a women's 16.5 fits 31.7 cm.
Where a maker prints a foot length, for a women's 16.5 it runs from 31.7 cm at Nike to 33 cm at Converse.
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
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.
- Gucci: Gucci's men's shoe size guide, opened from the Ace sneaker page: Gucci size, IT/EU, UK, US, Korea, Japan, Mexico and foot length. gucci.com, read 10 October 2026.
- Dior: Dior's shoe size chart, opened from the men's B30 sneaker page: Dior size with UK, US, Korea, Japan and foot length. dior.com, read 10 October 2026.
- Converse: Converse's men's standard size chart: US men's, US women's, UK and EU sizes with foot length in inches and cm, and the models it covers. converse.com, read 11 October 2026.
- New Balance: New Balance's own shoes chart with foot length. newbalance.com, read 8 September 2026.