EU 40 in UK and US shoe sizes
An EU 40 is not the same UK or US size in every brand. Here it is as most brands chart it, then brand by brand from the size charts of the 35 brands on this site, every one keyed to foot length.
Quick answers
What is EU 40 in UK and US size?
Most often UK 6.5: 25 of the 31 brand charts here that give a UK size for an EU 40 say so, and the full range is UK 5.5 to 7.5. In US sizes it is most often a men's 7 or a women's 9. It fits a foot about 25.3 cm long.
EU 40 by brand
32 of the 35 brands list an EU 40. Where a brand's men's and women's charts give different figures, both ends are shown.
| Brand | UK | US men | US women | Foot (cm) |
|---|---|---|---|---|
| Adidas | 6.5 | 7 | 8 | 24.6 |
| Altra | 6–6.5 | 7 | 8.5 | 25 |
| ASICS | 6–6.5 | 7 | 8.5 | 25.25–25.5 |
| Birkenstock | — | 7 | 9 | 26 |
| Brooks | 6–6.5 | 7 | 8.5 | 25 |
| Chaco | 6–7 | 7 | 9 | 25–26 |
| Clarks | 6.5 | 7.5 | 9 | 25 |
| Columbia | 6–7 | 7 | 9 | 24.5–25.4 |
| Converse | 7 | 7 | 9 | 25.5 |
| Danner | 5.5–6.5 | 7 | 8 | 24.1–25 |
| Hoka | 6.5 | 7 | 8 | 25 |
| Keen | 6.5–7 | 7.5 | 9.5 | 24.8–25.4 |
| LOWA | 6.5 | 7.5 | 8 | 25.2 |
| Merrell | 6.5 | 7 | 9 | 25–26 |
| Mizuno | 6.5 | 7.5 | 9 | 25.5 |
| New Balance | 6.5 | 7 | 8.5 | 25–25.5 |
| Nike | 6 | 7 | 8.5 | 25–25.5 |
| On | 6.5 | 7 | 8.5 | 25–25.5 |
| Puma | 6.5 | 7.5 | 9 | 25.5 |
| Red Wing | 6.5 | 7.5 | 9 | 25.5–26 |
| Reebok | 6.5 | 7.5 | 9 | 24.9 |
| Salomon | 6.5 | 7 | 8 | 24.5 |
| Saucony | 6–6.5 | 7 | 8.5 | 25 |
| Skechers | 6.5–7 | 7.5 | 10 | 25.5–27 |
| Sperry | 6.5 | 7.5 | 9 | 25.5–26 |
| Steve Madden | 6.5–7.5 | 7 | 9.5 | 24.4–25.4 |
| Teva | 6.5–7 | 7.5 | 9 | 25.1–25.4 |
| Timberland | 6.5–7 | 7 | 9 | 25–26 |
| TOMS | 6.5–7 | 7.5 | 9 | 25.5–26 |
| UGG | 6–7 | 7 | 9 | 25–26 |
| Under Armour | 6 | 7 | 8.5 | 25–25.5 |
| Vans | 6.5 | 7.5 | 9 | 25.5 |
The general chart
The general chart on the shoe size chart page, an average that is not any one brand's, puts an EU 40 at UK 6.5, US men's 7 and US women's 8.5 (25 cm). Where it differs from the brand tables above, trust the brand you are buying.
The right size depends on the brand. Measure your foot once and the calculator gives your size in all 35 brands at the same time.
Open the shoe size calculator