Shoe size for a 4 inch foot
A 4 inch foot (10.2 cm) is a kids’ US 2.5C, UK 2 and EU 17.5: toddler sizes.
In Mondopoint and Japanese sizes that’s Mondopoint 105 and Japan 10.5.
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Every size system for a 4 inch foot
| System | Men’s | Women’s | Kids |
|---|---|---|---|
| US | — | — | 2.5C |
| UK | — | — | 2 |
| EU | 17.5 | 17.5 | 17.5 |
| Mondopoint (mm) | 105 | 105 | 105 |
| Japan (cm) | 10.5 | 10.5 | 10.5 |
| India (UK sizes) | — | — | 2 |
| Australia and NZ | — | — | 2 |
| South Korea (mm) | 105 | 105 | 105 |
| China (mm) | 105 | 105 | 105 |
| Mexico (cm) | 10.5 | 10.5 | 10.5 |
| Brazil | 16 | 16 | 16 |
| Argentina, Uruguay, Paraguay | 17 | 17 | 17 |
From the standard size tables, rounded up to the next size when the foot is between two. A dash means the system has no size this small or large.
Where a 4 inch foot falls on US sizes
Each size fits feet longer than the size below it, up to its own length, here in inches. Your size is the first one long enough; the room left is how far the foot is from the top of that size.
US kids’
| Size | Fits feet over | Up to |
|---|---|---|
| 1.5C | 3.58 in | 3.75 in |
| 2C | 3.75 in | 3.92 in |
| 2.5C (this foot) | 3.92 in | 4.08 in |
| 3C | 4.08 in | 4.25 in |
| 3.5C | 4.25 in | 4.42 in |
Room left in US kids’ 2.5C: 0.08 in
A 4 inch foot in 15 brands
Room in the shoe: of the 14 brands that give foot lengths, Under Armour leaves the most, 0.33 in. Merrell’s size ends exactly at 4 inches, so a foot any longer needs another size: Merrell US 4 (to 4.33 in).
| Brand | Kids |
|---|---|
| adidas size chart (opens the brand’s site) | US 4kUK 3k · EU 19adidas’ chart: foot up to 4.17 in · 0.17 in to spare |
| Clarks size chart (opens the brand’s site) | UK 2.5EU 18Clarks’ chart: foot up to 4.13 in · rounded up · 0.13 in to spare |
| Converse size chart (opens the brand’s site) | US 2.5CUK 2.5 · EU 18.5From the standard US 2.5C |
| Crocs size chart (opens the brand’s site) | US C3UK 3 · EU 18-19Crocs’ chart: foot up to 4.21 in · 0.21 in to spare |
| Golden Goose size chart (opens the brand’s site) | EU 17US 2 · UK 1.5Golden Goose’s chart: foot up to 4.21 in · 0.21 in to spare |
| Jordan size chart (opens the brand’s site) | US 3CUK 2.5 · EU 18.5Jordan’s chart: foot up to 4.25 in · 0.25 in to spare |
| Merrell size chart (opens the brand’s site) | US 3UK 2.5 · EU 18Merrell’s chart: foot up to 4.02 in · no room to spare |
| New Balance size chart (opens the brand’s site) | US 3.5UK 3 · EU 19New Balance’s chart: foot up to 4.13 in · 0.13 in to spare |
| Nike size chart (opens the brand’s site) | US 3CUK 2.5 · EU 18.5Nike’s chart: foot up to 4.25 in · 0.25 in to spare |
| Timberland size chart (opens the brand’s site) | US 3UK 2.5 · EU 18.5Timberland’s chart: foot up to 4.13 in · 0.13 in to spare |
| UGG size chart (opens the brand’s site) | US 3UK 2.5 · EU 18.5UGG’s chart: foot up to 4.27 in · rounded up · 0.27 in to spare |
| Under Armour size chart (opens the brand’s site) | US 5KUK 4.5 · EU 21Under Armour’s chart: foot up to 4.33 in · 0.33 in to spare |
| Vans size chart (opens the brand’s site) | US 4CUK 3.5 · EU 19Vans’ chart: foot up to 4.13 in · 0.13 in to spare |
| Veja size chart (opens the brand’s site) | EU 17/18US 2.5 · UK 2Veja’s chart: foot up to 4.21 in · 0.21 in to spare |
| Zara size chart (opens the brand’s site) | US 3UK 2.5 · EU 17/18Zara’s chart: foot up to 4.29 in · 0.29 in to spare |
Sizes as each brand prints them on its own chart, linked. Not affiliated with any brand.
Size tables checked 2026-10-23; brand sizes from each brand’s own chart, linked above. An estimate to help you choose: fit varies by brand and model. Not medical advice.