Shoe size for an 8.5 inch foot
An 8.5 inch foot (21.6 cm) is a men’s US 3.5, a women’s US 5, UK 2.5 and EU 34.5.
In Mondopoint and Japanese sizes that’s Mondopoint 220 and Japan 22. For kids it’s a kids’ US 3.5Y, a big kid size.
Between sizes: just over Mondopoint 215, so 220; just over Japan 21.5, so 22. We round up.
Try another length
Every size system for an 8.5 inch foot
| System | Men’s | Women’s | Kids |
|---|---|---|---|
| US | 3.5 | 5 | 3.5Y |
| UK | 2.5 | 2.5 | 2.5 |
| EU | 34.5 | 34.5 | 34.5 |
| Mondopoint (mm) | 220 | 220 | 220 |
| Japan (cm) | 22 | 22 | 22 |
| India (UK sizes) | 2.5 | 2.5 | 2.5 |
| Australia and NZ | 2.5 | 5 | 2.5 |
| South Korea (mm) | 220 | 220 | 220 |
| China (mm) | 220 | 220 | 220 |
| Mexico (cm) | 22 | 22 | 22 |
| Brazil | 33 | 33 | 33 |
| Argentina, Uruguay, Paraguay | 34 | 34 | 34 |
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 long or short.
Where an 8.5 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.
US men’s
| Size | Fits feet over | Up to |
|---|---|---|
| 2.5 | 8.00 in | 8.17 in |
| 3 | 8.17 in | 8.33 in |
| 3.5 (this foot) | 8.33 in | 8.50 in |
| 4 | 8.50 in | 8.67 in |
| 4.5 | 8.67 in | 8.83 in |
US women’s
| Size | Fits feet over | Up to |
|---|---|---|
| 4 | 8.00 in | 8.17 in |
| 4.5 | 8.17 in | 8.33 in |
| 5 (this foot) | 8.33 in | 8.50 in |
| 5.5 | 8.50 in | 8.67 in |
| 6 | 8.67 in | 8.83 in |
How common is an 8.5 inch foot?
In the US Army’s 2012 ANSUR II survey, which measured adults’ feet to the millimetre, 100% of men (4,082 of 4,082) and 100% of women (1,978 of 1,986) had a foot at least this long.
Survey of US Army personnel, so not every population; see average shoe size for the whole spread.
An 8.5 inch foot in 39 brands
Brands don’t agree at this length: their own charts put an 8.5 inch foot anywhere from men’s US 3 (Teva) to US 4 (Crocs, Dr. Martens, HEYDUDE and 2 more). Check the brand you’re buying below.
Room in the shoe: of the 18 brands that give foot lengths, UGG leaves the most, 0.20 in. Five brands’ sizes end exactly at 8.5 inches, so a foot any longer needs another size: Jordan US 4 (to 8.66 in), KEEN US 5.5 (to 8.74 in), Nike US 4 (to 8.66 in), Reebok US 5.5 (to 8.70 in) and Teva US 3.5 (to 8.70 in).
| Brand | Men’s | Women’s | Kids |
|---|---|---|---|
| adidas size chart (opens the brand’s site) | — | — | US 3.5UK 3 · EU 35.5adidas’ chart: foot up to 8.50 in · no room to spare |
| Allbirds size chart (opens the brand’s site) | — | US 5UK 2 - 2.5From the standard US 5 | — |
| ANTA size chart (opens the brand’s site) | — | — | US 3YUK 2.5 · EU 35ANTA’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare |
| ASICS size chart (opens the brand’s site) | — | US 5UK 3 · EU 35.5From the standard US 5 | — |
| Bata size chart (opens the brand’s site) | — | EU 35UK 2.5From the standard UK 2.5 | — |
| Birkenstock size chart (opens the brand’s site) | — | — | EU 34US 3-3.5 · UK 2Birkenstock’s chart: foot up to 8.66 in · 0.16 in to spare |
| Bombas size chart (opens the brand’s site) | — | 5US 4.5-5 · UK 3 · EU 35.5Bombas’ chart: foot up to 8.66 in · 0.16 in to spare | — |
| Brooks size chart (opens the brand’s site) | US 3.5UK 2.5 · EU 35.5From the standard US 3.5 | US 5UK 3 · EU 35.5From the standard US 5 | — |
| Campus size chart (opens the brand’s site) | — | UK 4US 5 · EU 37From the standard US 5 | UK 3US 4 · EU 35.5Campus’ chart: foot up to 8.74 in · 0.24 in to spare |
| Clarks size chart (opens the brand’s site) | — | — | UK 3US 3.5 · EU 35.5Clarks’ chart: foot up to 8.62 in · 0.12 in to spare |
| Converse size chart (opens the brand’s site) | US 3.5EU 36From the standard US 3.5 | US 5UK 3 · EU 35From the standard US 5 | US 3.5YUK 3 · EU 35.5From the standard US 3.5Y |
| Crocs size chart (opens the brand’s site) | M4/W6US 4 · UK 3 · EU 36-37Crocs’ chart: foot up to 8.66 in · 0.16 in to spare | US 6UK 4 · EU 36-37Crocs’ chart: foot up to 8.66 in · 0.16 in to spare | US J3UK 3 · EU 31-32Crocs’ chart: foot up to 8.54 in · 0.04 in to spare |
| Dr. Martens size chart (opens the brand’s site) | UK 3US 4 · EU 36Dr. Martens’ chart: foot up to 8.66 in · 0.16 in to spare | UK 3US 5 · EU 36Dr. Martens’ chart: foot up to 8.66 in · 0.16 in to spare | — |
| Fila size chart (opens the brand’s site) | — | UK 3US 4 · EU 36Fila’s chart: foot up to 8.66 in · 0.16 in to spare | — |
| Gucci size chart (opens the brand’s site) | — | EU 34UK 1Gucci’s chart: foot up to 8.58 in · 0.08 in to spare | — |
| HEYDUDE size chart (opens the brand’s site) | US 4EU 37HEYDUDE’s chart: foot up to 8.66 in · 0.16 in to spare | US 5EU 36HEYDUDE’s chart: foot up to 8.66 in · 0.16 in to spare | — |
| HOKA size chart (opens the brand’s site) | — | — | US 3.5YHOKA’s chart: foot up to 8.66 in · 0.16 in to spare |
| Jordan size chart (opens the brand’s site) | US 3.5UK 3 · EU 35.5Jordan’s chart: foot up to 8.50 in · no room to spare | US 4.5UK 2 · EU 35Jordan’s chart: foot up to 8.50 in · no room to spare | US 3YUK 2.5 · EU 35Jordan’s chart: foot up to 8.58 in · 0.08 in to spare |
| KEEN size chart (opens the brand’s site) | — | US 5UK 2.5 · EU 35KEEN’s chart: foot up to 8.50 in · no room to spare | US 3UK 2 · EU 35KEEN’s chart: foot up to 8.50 in · no room to spare |
| Liberty size chart (opens the brand’s site) | — | UK 2US 3 · EU 34Liberty’s chart: foot up to 8.54 in · 0.04 in to spare | — |
| Merrell size chart (opens the brand’s site) | — | US 5UK 2.5 · EU 35From the standard US 5 | US 3UK 2 · EU 35Merrell’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare |
| New Balance size chart (opens the brand’s site) | US 4UK 3.5 · EU 36New Balance’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare | US 5UK 3 · EU 35New Balance’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare | US 4UK 3.5 · EU 36New Balance’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare |
| Nike size chart (opens the brand’s site) | US 3.5UK 3 · EU 35.5Nike’s chart: foot up to 8.50 in · no room to spare | US 4.5UK 2 · EU 35Nike’s chart: foot up to 8.50 in · no room to spare | US 3YUK 2.5 · EU 35Nike’s chart: foot up to 8.58 in · 0.08 in to spare |
| On size chart (opens the brand’s site) | — | US 5UK 3 · EU 36From the standard US 5 | US 3.5YUK 3Y · EU 35.5On’s chart: foot up to 8.50 in · no room to spare |
| Onitsuka Tiger size chart (opens the brand’s site) | — | US 5UK 3 · EU 35.5From the standard US 5 | — |
| PUMA size chart (opens the brand’s site) | — | — | US 3UK 2 · EU 34.5From the standard EU 34.5 |
| Red Tape size chart (opens the brand’s site) | — | UK 3US 5 · EU 36From the standard US 5 | — |
| Reebok size chart (opens the brand’s site) | — | US 5Reebok’s chart: foot up to 8.50 in · no room to spare | — |
| Salomon size chart (opens the brand’s site) | — | US 5.5UK 4 · EU 36 2/3Salomon’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare | EU 36US 4 · UK 3.5Salomon’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare |
| Saucony size chart (opens the brand’s site) | — | — | 2 Big KidsUS 2 · UK 1 · EU 33.5Saucony’s chart: foot up to 8.63 in · 0.13 in to spare |
| Skechers size chart (opens the brand’s site) | — | US 5UK 2 · EU 35From the standard US 5 | — |
| SOREL size chart (opens the brand’s site) | — | — | US 4UK 3 · EU 35SOREL’s chart: foot up to 8.74 in · 0.24 in to spare |
| Teva size chart (opens the brand’s site) | US 3UK 2 · EU 34Teva’s chart: foot up to 8.50 in · no room to spare | US 4.5UK 2.5 · EU 35.5Teva’s chart: foot up to 8.50 in · no room to spare | — |
| Timberland size chart (opens the brand’s site) | — | US 5UK 3 · EU 35.5Timberland’s chart: foot up to 8.66 in · 0.16 in to spare | US 3.5UK 3 · EU 35.5Timberland’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare |
| UGG size chart (opens the brand’s site) | US 4UK 3 · EU 37UGG’s chart: foot up to 8.70 in · 0.20 in to spare | — | US 3KUK 2 · EU 35UGG’s chart: foot up to 8.59 in · 0.09 in to spare |
| Under Armour size chart (opens the brand’s site) | — | — | US 3UK 2.5 · EU 35Under Armour’s chart: foot up to 8.66 in · rounded up · 0.16 in to spare |
| Vans size chart (opens the brand’s site) | EU 35UK 3Vans’ chart: foot up to 8.66 in · rounded up · 0.16 in to spare | EU 35US 5.5 · UK 3Vans’ chart: foot up to 8.66 in · rounded up · 0.16 in to spare | EU 35US 4 · UK 3Vans’ chart: foot up to 8.66 in · rounded up · 0.16 in to spare |
| Veja size chart (opens the brand’s site) | EU 35US W4 · UK 2Veja’s chart: foot up to 8.66 in · 0.16 in to spare | EU 35UK 2Veja’s chart: foot up to 8.66 in · 0.16 in to spare | — |
| Woodland size chart (opens the brand’s site) | — | UK 3US 5 · EU 36From the standard US 5 | — |
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.