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About the shoe size converter
Choose Men, Women or Kids. Then type a shoe size you know — US, UK, EU, cm or Mondopoint — or the length of your foot. The converter shows your size in every system, and a full size chart with your size marked.
Brands differ — please read this. There is no single world standard for shoe sizes. One brand's EU 42 can be a little longer or shorter than another brand's EU 42, and sneakers, boots and dress shoes fit differently. The numbers here come from the usual formulas, so they are a good starting point. For the best fit, measure your foot and check the size chart of the brand you buy.
Features
- Men, women and kids — with US kids (C) and big kids (Y) sizes
- From a size or from your foot — type a size, or the length of your foot in inches or cm
- 6 systems — US, UK, EU, cm (Japan, Korea, China), Mondopoint and foot length
- Men's ⇄ women's — the same foot in the other US scale, for unisex sneakers
- Full size charts — your size marked in the table
- The system stays with you — change from US to EU and the size box keeps the same foot
How to measure your foot
- Put a sheet of paper on the floor, against a wall.
- Stand on it with your heel against the wall. Wear the socks you will wear with the shoes.
- Mark the tip of your longest toe on the paper.
- Measure from the wall to the mark, in inches or cm. Do it for both feet and use the longer one.
Measure in the evening — feet are a little bigger at the end of the day.
Men's shoe size chart
| US men | UK | EU | Foot (in) | Foot (cm) | Mondopoint |
|---|---|---|---|---|---|
| 6 | 5 | 37.5 | 9.33 in | 23.7 cm | 235 |
| 6.5 | 5.5 | 38 | 9.50 in | 24.1 cm | 240 |
| 7 | 6 | 39 | 9.67 in | 24.6 cm | 245 |
| 7.5 | 6.5 | 39.5 | 9.83 in | 25.0 cm | 250 |
| 8 | 7 | 40 | 10.00 in | 25.4 cm | 255 |
| 8.5 | 7.5 | 40.5 | 10.17 in | 25.8 cm | 260 |
| 9 | 8 | 41.5 | 10.33 in | 26.2 cm | 260 |
| 9.5 | 8.5 | 42 | 10.50 in | 26.7 cm | 265 |
| 10 | 9 | 42.5 | 10.67 in | 27.1 cm | 270 |
| 10.5 | 9.5 | 43.5 | 10.83 in | 27.5 cm | 275 |
| 11 | 10 | 44 | 11.00 in | 27.9 cm | 280 |
| 11.5 | 10.5 | 44.5 | 11.17 in | 28.4 cm | 285 |
| 12 | 11 | 45 | 11.33 in | 28.8 cm | 290 |
| 13 | 12 | 46.5 | 11.67 in | 29.6 cm | 295 |
| 14 | 13 | 47.5 | 12.00 in | 30.5 cm | 305 |
| 15 | 14 | 49 | 12.33 in | 31.3 cm | 315 |
Women's shoe size chart
| US women | UK | EU | Foot (in) | Foot (cm) | US men |
|---|---|---|---|---|---|
| 4 | 1.5 | 33 | 8.17 in | 20.7 cm | 2.5 |
| 5 | 2.5 | 34.5 | 8.50 in | 21.6 cm | 3.5 |
| 5.5 | 3 | 35 | 8.67 in | 22.0 cm | 4 |
| 6 | 3.5 | 35.5 | 8.83 in | 22.4 cm | 4.5 |
| 6.5 | 4 | 36.5 | 9.00 in | 22.9 cm | 5 |
| 7 | 4.5 | 37 | 9.17 in | 23.3 cm | 5.5 |
| 7.5 | 5 | 37.5 | 9.33 in | 23.7 cm | 6 |
| 8 | 5.5 | 38 | 9.50 in | 24.1 cm | 6.5 |
| 8.5 | 6 | 39 | 9.67 in | 24.6 cm | 7 |
| 9 | 6.5 | 39.5 | 9.83 in | 25.0 cm | 7.5 |
| 9.5 | 7 | 40 | 10.00 in | 25.4 cm | 8 |
| 10 | 7.5 | 40.5 | 10.17 in | 25.8 cm | 8.5 |
| 11 | 8.5 | 42 | 10.50 in | 26.7 cm | 9.5 |
| 12 | 9.5 | 43.5 | 10.83 in | 27.5 cm | 10.5 |
Kids' shoe size chart
US kids' sizes go up to 13.5C, then start again at 1Y ("youth" or "big kids"). In the UK, kids' sizes go up to 13.5, then adult sizes start at 1.
| US kids | UK | EU | Foot (in) | Foot (cm) |
|---|---|---|---|---|
| 4C | 4 | 19.5 | 4.58 in | 11.6 cm |
| 5C | 5 | 20.5 | 4.92 in | 12.5 cm |
| 6C | 6 | 22 | 5.25 in | 13.3 cm |
| 7C | 7 | 23.5 | 5.58 in | 14.2 cm |
| 8C | 8 | 24.5 | 5.92 in | 15.0 cm |
| 9C | 9 | 26 | 6.25 in | 15.9 cm |
| 10C | 10 | 27 | 6.58 in | 16.7 cm |
| 11C | 11 | 28.5 | 6.92 in | 17.6 cm |
| 12C | 12 | 29.5 | 7.25 in | 18.4 cm |
| 13C | 13 | 31 | 7.58 in | 19.3 cm |
| 1Y | 1 (adult) | 32 | 7.92 in | 20.1 cm |
| 2Y | 2 (adult) | 33.5 | 8.25 in | 21.0 cm |
| 3Y | 3 (adult) | 34.5 | 8.58 in | 21.8 cm |
| 4Y | 4 (adult) | 36 | 8.92 in | 22.6 cm |
| 5Y | 5 (adult) | 37 | 9.25 in | 23.5 cm |
| 6Y | 6 (adult) | 38.5 | 9.58 in | 24.3 cm |
| 7Y | 7 (adult) | 40 | 9.92 in | 25.2 cm |
Children's feet grow fast. Many parents leave about 1 cm (⅜ in) of room in front of the toes.
The formulas
Shoe sizes in the US and UK go up by ⅓ inch (one "barleycorn") per size. EU sizes go up by ⅔ cm (one "Paris point"). The converter starts from the length of the foot F:
| System | Formula |
|---|---|
| UK adults | 3 × F (in) − 23 |
| US men | 3 × F (in) − 22 |
| US women | 3 × F (in) − 20.5 (men's size + 1.5) |
| UK kids | 3 × F (in) − 10 |
| US kids | 3 × F (in) − 9.75 (after 13.5C comes 1Y) |
| EU | 1.5 × F (cm) + 2 |
| Japan, Korea, China | F in cm (to the nearest 0.5) |
| Mondopoint | F in mm (to the nearest 5) |
Sizes are rounded to the nearest half size. Some brands count women's sizes as men's + 1 or + 2 instead of + 1.5 — another reason to check the brand's chart.
Worked example
The page opens on a man's foot of 10.5 inches (26.7 cm):
- US men: 3 × 10.5 − 22 = 9.5
- UK: 3 × 10.5 − 23 = 8.5
- EU: 1.5 × 26.67 + 2 = 42 → 42
- US women: 3 × 10.5 − 20.5 = 11
- Japan: 26.5 cm · Mondopoint: 265
Frequently asked questions
How do I convert US shoe sizes to EU?
With the usual formula, a men's US 8 is EU 40, US 9 is EU 41.5 and US 10 is EU 42.5. For women, US 7 is EU 37 and US 8 is EU 38. The charts above give every half size. Brands differ, so check the brand's own chart too.
How do women's sizes compare to men's?
On the usual US scale, a women's size is the men's size + 1.5. A men's 8 is about a women's 9.5. Some brands use + 1 or + 2.
What are Japanese shoe sizes?
Japan, Korea and China use the length of the foot in cm (Korea often in mm). A 26.5 in Japan is for a foot of about 26.5 cm.
What is Mondopoint?
It is the foot length in millimetres, used for ski boots, running shoes and military boots. A foot of 265 mm is Mondopoint 265.
What does "C" and "Y" mean on kids' shoes?
C is for babies, toddlers and little kids (0C to 13.5C). Y ("youth") is for big kids, from 1Y to about 7Y. After 7Y, kids move to adult sizes.
Why does my size differ between brands?
Each brand builds its shoes on its own forms (lasts), with its own extra room. That is why a size chart is a starting point, and why trying the shoes on — or measuring your foot — matters.
Related tools
- Ring Size Chart — US, UK, EU and Japan ring sizes
- Height Converter — feet and inches to cm
- CM to Inches — measure your foot in one, read it in the other
- Online Ruler — a real-size ruler on your screen
- Unit Converter — lengths, weights and more
How to use it
- Choose Men, Women or Kids
- Choose From foot length and type your Foot length (heel to longest toe) in inches or cm
- Or choose From a shoe size, pick the Size system and type the Size
- Read your size in US, UK, EU, cm and Mondopoint in the result
- Look at the size chart below — your size is marked — and press Copy to keep the result
