UK to CM / JP shoe size
The short answer
By the formula, UK 3.5 is CM / JP 22.5. On brand charts the most common answer is 22 (4 of 11 brands), and 4 different answers are in print.
The formula and the brands' most common answer differ on 10 of 15 sizes below. Use the brand's own number for the brand you are buying.
| UK | CM / JP by formula | Most brands print | Other answers in print |
|---|---|---|---|
| 3 | 22 | 22 (3 of 8) | 22.5: Merrell, Onitsuka Tiger; 23: Allbirds, Skechers; 23.5: Golden Goose |
| 3.5 | 22.5 | 22 (4 of 11) | 23: Allbirds, Merrell, norda, Onitsuka Tiger; 22.5: Mizuno, On; 23.5: Allbirds, Skechers |
| 4 | 23 | 22.5 (4 of 13) | 23: Mizuno, On, VEJA; 23.5: Merrell, norda, Onitsuka Tiger; 24: Allbirds, Skechers; 24.5: Golden Goose |
| 4.5 | 23.5 | 23 (4 of 12) | 24: Allbirds, Merrell, norda, Onitsuka Tiger; 23.5: Mizuno, On, VEJA; 24.5: Allbirds, Skechers |
| 5 | 24 | 23.5 (4 of 13) | 24: Mizuno, On, VEJA; 24.5: Merrell, norda, Onitsuka Tiger; 25: Allbirds, Golden Goose, Skechers |
| 5.5 | 24.5 | 24 (4 of 12) | 25: Allbirds, Merrell, norda, Onitsuka Tiger; 24.5: Mizuno, On, VEJA; 25.5: Allbirds, Skechers |
| 6 | 25 | 24.5 (3 of 12) | 25: Mizuno, On, VEJA; 25.5: Golden Goose, Merrell; 26: Allbirds, Skechers; 24: lululemon; 25.25: norda |
| 6.5 | 25.5 | 25.5 (4 of 11) | 25: adidas, Arc'teryx, HOKA; 26: Allbirds, Merrell; 26.5: Allbirds, Skechers; 24.5: lululemon |
| 7 | 26 | 25.5 (4 of 13) | 26: Mizuno, norda, On, Onitsuka Tiger; 26.5: Golden Goose, Merrell; 27: Allbirds, Skechers; 25: lululemon |
| 7.5 | 26.5 | 26.5 (4 of 11) | 26: adidas, Arc'teryx, HOKA; 27: Allbirds, Merrell; 27.5: Allbirds, Skechers; 25.5: lululemon |
| 8 | 27 | 27 (5 of 13) | 26.5: adidas, Arc'teryx, HOKA, VEJA; 28: Allbirds, Skechers; 26: lululemon; 27.5: Merrell |
| 8.5 | 27.5 | 27.5 (5 of 11) | 27: adidas, Arc'teryx, HOKA; 28: Allbirds, Merrell; 26: lululemon |
| 9 | 28 | 27.5 (4 of 11) | 28: Mizuno, On, Onitsuka Tiger, VEJA; 26.5: lululemon; 28.5: Merrell; 29: Skechers |
| 9.5 | 28.5 | 28 (3 of 5) | 27: lululemon; 28.5: Mizuno |
| 10 | 29 | 28.5 (4 of 8) | 29: Mizuno, On; 27.5: lululemon; 30: Skechers |
The widest split is at UK 9: brand charts print anything from CM / JP 26.5 to 29 for the same size.