Size guide Mercury
Men
| US | UK | EU | L × W |
|---|---|---|---|
| 6.5 | 5.5 | 39 | 10.0 × 3.1 in (25.5 × 8 cm) |
| 7 | 6 | 40 | 10.4 × 3.3 in (26.5 × 8.5 cm) |
| 7.5 | 6.5 | 41 | 10.6 × 3.3 in (27 × 8.5 cm) |
| 8.5 | 7.5 | 42 | 10.8 × 3.3 in (27.5 × 8.5 cm) |
| 9 | 8 | 43 | 11.0 × 3.3 in (28 × 8.5 cm) |
| 10 | 9 | 44 | 11.4 × 3.3 in (29 × 8.5 cm) |
| 10.5 | 9.5 | 45 | 12.0 × 3.7 in (30.5 × 9.5 cm) |
| 11.5 | 10.5 | 46 | 12.2 × 3.9 in (31 × 10 cm) |
| 12 | 11 | 47 | 12.4 × 3.9 in (31.5 × 10 cm) |
| 12.5 | 12 | 48 | 12.6 × 4.1 in (32 × 10.5 cm) |
Women
| US | UK | EU | L × W |
|---|---|---|---|
| 6 | 4.5 | 36 | 9.1 × 2.8 in (23 × 7 cm) |
| 6.5 | 5 | 37 | 9.3 × 3.0 in (23.5 × 7.5 cm) |
| 7.5 | 6 | 38 | 9.6 × 3.0 in (24.5 × 7.5 cm) |
| 8 | 6.5 | 39 | 9.8 × 3.1 in (25 × 8 cm) |
| 8.5 | 7 | 40 | 10.0 × 3.1 in (25.5 × 8 cm) |
| 9 | 7.5 | 41 | 10.4 × 3.3 in (26.5 × 8.5 cm) |