US men's to EU shoe size
The short answer
By the formula, US men's 4 is EU 35.5. On brand charts the most common answer is 36 (5 of 9 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.
| US men's | EU by formula | Most brands print | Other answers in print |
|---|---|---|---|
| 3.5 | 35 | 35 (2 of 6) | 35.5: Nike, Saucony; 34.5: Mizuno; 36: Converse |
| 4 | 35.5 | 36 (5 of 9) | 35.5: Merrell, Onitsuka Tiger; 35: Mizuno; 36.5: Converse |
| 4.5 | 36 | 36 (3 of 10) | 36.5: La Sportiva, New Balance, Nike; 37: Converse, Onitsuka Tiger, Saucony; 36 2/3: adidas, Arc'teryx |
| 5 | 37 | 37.5 (4 of 10) | 37: La Sportiva, Merrell, New Balance; 36.5: La Sportiva, Mizuno; 37 1/3: adidas, Arc'teryx |
| 5.5 | 37.5 | 38 (6 of 10) | 37.5: La Sportiva, Merrell, New Balance; 37: Mizuno |
| 6 | 38 | 38 (4 of 11) | 39: Converse, Onitsuka Tiger, VEJA; 38 2/3: adidas, Arc'teryx; 38.5: Nike, Saucony |
| 6.5 | 38.5 | 39 (4 of 10) | 38.5: La Sportiva, Merrell, Mizuno; 39 1/3: adidas, Arc'teryx; 39.5: Converse, Onitsuka Tiger |
| 7 | 39.5 | 40 (7 of 10) | 39: La Sportiva, Merrell, Mizuno; 39.5: La Sportiva |
| 7.5 | 40 | 40 (4 of 10) | 40.5: New Balance, Nike, Saucony; 40 2/3: adidas, Arc'teryx; 41: Converse |
| 8 | 40.5 | 41 (4 of 11) | 40.5: La Sportiva, Merrell, Mizuno; 41 1/3: adidas, Arc'teryx; 41.5: Converse, Onitsuka Tiger |
| 8.5 | 41.5 | 42 (6 of 10) | 41: La Sportiva, Merrell, Mizuno; 41.5: La Sportiva, New Balance |
| 9 | 42 | 42.5 (5 of 11) | 42: La Sportiva, Merrell, Mizuno, VEJA; 42 2/3: adidas, Arc'teryx; 41.5: La Sportiva |
| 9.5 | 42.5 | 42.5 (4 of 11) | 43: Converse, New Balance, Nike, Saucony; 43 1/3: adidas, Arc'teryx; 43.5: Onitsuka Tiger |
| 10 | 43 | 44 (6 of 10) | 43: La Sportiva, Merrell, Mizuno; 43.5: New Balance |
| 10.5 | 44 | 44.5 (3 of 7) | 44: Mizuno, New Balance; 44 2/3: adidas, Arc'teryx |
The widest split is at US men's 3.5: brand charts print anything from EU 34.5 to 36 for the same size.