US to CM Shoe Size Converter
Easily convert your US shoe size to centimeters (CM) - the international standard for foot length measurement. Based on ISO 9407:2019 standard for accurate conversions.
Size Converter
Select your current size and system
Half sizes are rounded to the nearest 0.5
Converted Sizes
All Regional Sizes
CM
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Reference Table
Complete size conversion chart
| US | EU | UK | CM | AU (UK) | JP (CM) | CN (CM) | MX (CM) | BR |
|---|---|---|---|---|---|---|---|---|
| 4 | 36.5 | 3.5 | 22 | 3.5 | 22 | 220 | 22 | 35 |
| 4.5 | 37 | 4 | 22.5 | 4 | 22.5 | 225 | 22.5 | 35.5 |
| 5 | 37.5 | 4.5 | 23 | 4.5 | 23 | 230 | 23 | 36 |
| 5.5 | 38 | 5 | 23.5 | 5 | 23.5 | 235 | 23.5 | 36.5 |
| 6 | 39 | 5.5 | 24 | 5.5 | 24 | 240 | 24 | 37 |
| 6.5 | 39.5 | 6 | 24.5 | 6 | 24.5 | 245 | 24.5 | 38 |
| 7 | 40 | 6.5 | 25 | 6.5 | 25 | 250 | 25 | 39 |
| 7.5 | 40.5 | 7 | 25.5 | 7 | 25.5 | 255 | 25.5 | 39.5 |
| 8 | 41 | 7.5 | 26 | 7.5 | 26 | 260 | 26 | 40 |
| 8.5 | 42 | 8 | 26.5 | 8 | 26.5 | 265 | 26.5 | 40.5 |
| 9 | 42.5 | 8.5 | 27 | 8.5 | 27 | 270 | 27 | 41 |
| 9.5 | 43 | 9 | 27.5 | 9 | 27.5 | 275 | 27.5 | 41.5 |
| 10 | 44 | 9.5 | 28 | 9.5 | 28 | 280 | 28 | 42 |
| 10.5 | 44.5 | 10 | 28.5 | 10 | 28.5 | 285 | 28.5 | 42.5 |
| 11 | 45 | 10.5 | 29 | 10.5 | 29 | 290 | 29 | 43 |
| 11.5 | 45.5 | 11 | 29.5 | 11 | 29.5 | 295 | 29.5 | 43.5 |
| 12 | 46 | 11.5 | 30 | 11.5 | 30 | 300 | 30 | 44 |
| 13 | 47.5 | 12.5 | 31 | 12.5 | 31 | 310 | 31 | 45 |
| 14 | 48.5 | 13.5 | 32 | 13.5 | 32 | 320 | 32 | 46 |
| 15 | 49.5 | 14.5 | 33 | 14.5 | 33 | 330 | 33 | 47 |
Frequently Asked Questions
🦶 How to Measure Your Feet
1. Trace Your Foot
The most accurate method for home measurement:
- Place a piece of paper on the floor against a wall.
- Stand on the paper with your heel against the wall.
- Hold a pen vertically (90°) and trace your foot outline.
2. Measure Length & Width
- Use a ruler to measure the length from the heel line to your longest toe mark.
- Measure the width at the widest part of your foot trace.
- Pro Tip: Subtract 0.2 inches (5mm) from length to account for the pencil width.
👟 Fit Check: The Thumb Test
Is it the right size?
- There should be about a thumb's width of space between your longest toe and the end of the shoe.
- The heel should fit snugly without slipping.
- The widest part of your foot should align with the widest part of the shoe.
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