Adult Shoes
Shoe Sizes · 7 specs
Direct Answer
Universal adult shoe size conversion matrix comparing foot length in centimeters, millimeters (Mondopoint), and inches against standard sizing systems: US Men's, US Women's, UK (Barleycorn), European (Paris Points), and Japanese (JP cm).
Source: ISO 19407 / ISO 9407 / SATRA Footwear Sizing Standards · Last reviewed Aug 28, 2026
Specs
| Governing Standards | ISO 19407 / ISO 9407 / SATRA TM / ASTM F2413 |
| Mondopoint Standard (ISO 9407) | Exact foot length in millimeters (e.g., 270 mm = 27.0 cm) |
| European Standard (Paris Point) | 1 Paris Point = 2/3 cm (6.67 mm) last length |
| US & UK Standard (Barleycorn) | 1 Full Size = 1/3 inch (8.47 mm) | 1 Half Size = 1/6 inch (4.23 mm) |
| US Men vs US Women Offset | US Women's Size = US Men's Size + 1.5 (e.g., Men's 8.0 = Women's 9.5) |
| US Men vs UK Offset | US Men's Size = UK Size + 1.0 (e.g., UK 9.0 = US Men's 10.0) |
| Japanese System (JP) | Direct barefoot length in centimeters (e.g., 26.5 cm = JP 26.5) |
Universal Adult Shoe Size Conversion Matrix
| Foot Length (cm) | Foot Length (in) | Mondopoint (mm) | EU Size | US Men's | US Women's | UK Size | Japan (JP cm) |
|---|---|---|---|---|---|---|---|
| 22.0 cm | 8.66" | 220 | 35 | 3.5 | 5.0 | 3.0 | 22.0 |
| 22.5 cm | 8.86" | 225 | 35.5 / 36 | 4.0 | 5.5 | 3.5 | 22.5 |
| 23.0 cm | 9.06" | 230 | 36.5 | 4.5 | 6.0 | 4.0 | 23.0 |
| 23.5 cm | 9.25" | 235 | 37 / 37.5 | 5.0 | 6.5 | 4.5 | 23.5 |
| 24.0 cm | 9.45" | 240 | 38 | 5.5 / 6.0 | 7.0 / 7.5 | 5.0 | 24.0 |
| 24.5 cm | 9.65" | 245 | 38.5 / 39 | 6.5 | 8.0 | 5.5 | 24.5 |
| 25.0 cm | 9.84" | 250 | 39.5 / 40 | 7.0 | 8.5 | 6.0 | 25.0 |
| 25.5 cm | 10.04" | 255 | 40.5 | 7.5 | 9.0 | 6.5 | 25.5 |
| 26.0 cm | 10.24" | 260 | 41 / 41.5 | 8.0 | 9.5 | 7.0 | 26.0 |
| 26.5 cm | 10.43" | 265 | 42 | 8.5 | 10.0 | 7.5 | 26.5 |
| 27.0 cm | 10.63" | 270 | 42.5 / 43 | 9.0 | 10.5 | 8.0 | 27.0 |
| 27.5 cm | 10.83" | 275 | 43.5 / 44 | 9.5 | 11.0 | 8.5 | 27.5 |
| 28.0 cm | 11.02" | 280 | 44.5 | 10.0 | 11.5 | 9.0 | 28.0 |
| 28.5 cm | 11.22" | 285 | 45 | 10.5 | 12.0 | 9.5 | 28.5 |
| 29.0 cm | 11.42" | 290 | 45.5 / 46 | 11.0 | 12.5 | 10.0 | 29.0 |
| 29.5 cm | 11.61" | 295 | 46.5 / 47 | 11.5 | 13.0 | 10.5 | 29.5 |
| 30.0 cm | 11.81" | 300 | 47.5 / 48 | 12.0 | 13.5 | 11.0 | 30.0 |
| 31.0 cm | 12.20" | 310 | 49 | 13.0 | 14.5 | 12.0 | 31.0 |
| 32.0 cm | 12.60" | 320 | 50 | 14.0 | 15.5 | 13.0 | 32.0 |
How to Accurately Measure Foot Length at Home
To find your true shoe size:
- Place a piece of paper flat against a hard wall on a hard floor.
- Stand barefoot on the paper with your heel firmly against the wall under full weight-bearing load.
- Use a pencil held vertically (90°) to mark the tip of your longest toe (note: for many people, the second toe is longer than the big toe).
- Measure the distance from the edge of the paper to the mark in millimeters or centimeters.
- Measure both feet and select the size corresponding to your larger foot. Standard shoe lasts incorporate 10 to 15 mm of internal toe allowance for walking elongation.