EU shoe size 42
Updated: 14 July 2026
EU shoe size 42 maps to a foot length of 26.5 cm, which is about 10.4 inches. For women that is UK 8.5 and US 10.5, for men UK 8.5 and US 9.5. Foot length is the one value you can measure yourself, and everything else follows from it.
Size 42 for women
| EU | Foot length | UK | US |
|---|---|---|---|
| EU 40 | 25.5 cm | UK 7 | US 9 |
| EU 41 | 26.0 cm | UK 7.5 | US 9.5 |
| EU 42 | 26.5 cm | UK 8.5 | US 10.5 |
| EU 43 | 27.5 cm | UK 9.5 | US 11.5 |
| EU 44 | 28.0 cm | UK 10 | US 12 |
Size 42 for men
| EU | Foot length | UK | US |
|---|---|---|---|
| EU 40 | 25.5 cm | UK 7 | US 8 |
| EU 41 | 26.0 cm | UK 7.5 | US 8.5 |
| EU 42 | 26.5 cm | UK 8.5 | US 9.5 |
| EU 43 | 27.5 cm | UK 9.5 | US 10.5 |
| EU 44 | 28.0 cm | UK 10 | US 11 |
Measure, do not guess
Measure barefoot on a sheet of paper, from the heel to the longest toe, and use the longer of your two feet. Do not add anything to the result, read the length straight off the chart.
The rows next to 42
EU 41 stands for 26.0 cm, EU 43 for 27.5 cm. That is all the chart says: it maps each listed foot length to a size, and there is nothing between the rows.
The gap between 42 and 43 is 1.0 cm of foot length.
The gap between 41 and 42 is 0.5 cm.
Whether one particular shoe fits comes down to the size chart of the brand. Compare your measured foot length with that chart and try the shoes on.
Common questions
How many cm is EU shoe size 42?
26.5 cm of foot length, about 10.4 inches. That is the length ISO 19407 assigns to this size. Do not add anything to your own measurement.
What is EU size 42 in US sizes?
US 10.5 for women and US 9.5 for men. The two scales sit one number apart.
Should I take 42 or 43?
Measure your foot and compare the result with the size chart of the brand. In the ISO chart 26.5 cm belongs to 42 and 27.5 cm belongs to 43. For lengths in between the chart makes no promise about fit.