US 4 to EU shoe size
US men's 4 is EU 36, a foot length of 22.5 cm. Convert any other size below, or see the full US to EU chart.
US sizes near 4
| US Men | US Women | EU | Foot (cm) |
|---|---|---|---|
| 3.5 | 5 | 35.5 | 22.1 |
| 4 | 5.5 | 36 | 22.5 |
| 4.5 | 6 | 37 | 22.9 |
| 5 | 6.5 | 37.5 | 23.3 |
US men's 4 and EU 36 both correspond to a foot length of 22.5 cm, which is the one measurement that does not change between systems. If you know your foot length directly, you can confirm the size without converting at all.
For every other US size, see the full US to EU shoe size chart, or measure your foot with how to measure shoe size.
Common questions
What is US 4 in EU shoe size?
US men's 4 is EU 36. Both sit on the same foot length of 22.5 cm.
Is US 4 a men's or women's size?
As a US size, 4 is shown here as a men's size by default. The chart above lists both the men's and women's number for the same foot length, so check the column that applies to you.
What if I am between two sizes?
Size up. A slightly long shoe is more comfortable than one that is too short, and you can adjust the fit with insoles or thicker socks.
Last reviewed and updated on July 2, 2026. Conversion tables are checked against published international sizing standards.