Shoe Size Converter
Convert shoe sizes between US, UK, EU, and CM (foot length) systems for men, women, and kids. Find your perfect fit across international sizing standards.
How Shoe Sizes Work
Shoe sizing systems vary by country and have different starting points and increments. The US system uses a barleycorn unit (1/3 inch) as its increment, with different starting points for men, women, and children. The UK system is similar but offset by about half a size from US men's. The EU (Continental European) system uses Paris points (2/3 cm or 6.67mm) as increments. The CM system simply measures foot length in centimeters, making it the most straightforward but least commonly used on shoe labels.
How to Measure Your Foot Length
Step 1: Place a piece of paper on a hard floor against a wall.
Step 2: Stand on the paper with your heel touching the wall.
Step 3: Mark the longest point of your foot (usually the big toe or second toe).
Step 4: Measure the distance from the wall to the mark in centimeters.
Step 5: Measure both feet — use the larger measurement.
Tip: Measure in the afternoon when feet are slightly swollen from daily activity.
Shoe Width Guide
Width is as important as length for proper fit. US shoe widths range from AAA (narrowest) through D (standard for men) or B (standard for women) to EEE (widest). If you frequently experience pinching at the ball of the foot, consider going up a width rather than a length. European shoes typically do not specify width but tend to run narrower than US shoes.
Size Chart — Men's Shoes
| US | UK | EU | CM |
|---|---|---|---|
| 6 | 5.5 | 39 | 24 |
| 7 | 6.5 | 40 | 25 |
| 8 | 7.5 | 41 | 26 |
| 9 | 8.5 | 42.5 | 27 |
| 10 | 9.5 | 44 | 28 |
| 11 | 10.5 | 45 | 29 |
| 12 | 11.5 | 46 | 30 |
| 13 | 12.5 | 47.5 | 31 |
| 14 | 13.5 | 48.5 | 32 |
| 15 | 14.5 | 49.5 | 33 |
| 6.5 | 6 | 39.5 | 24.5 |
| 7.5 | 7 | 40.5 | 25.5 |
| 8.5 | 8 | 42 | 26.5 |
| 9.5 | 9 | 43 | 27.5 |
| 10.5 | 10 | 44.5 | 28.5 |
| 11.5 | 11 | 45.5 | 29.5 |
| 12.5 | 12 | 47 | 30.5 |
Frequently Asked Questions
How do I convert men's to women's shoe sizes?
In the US system, women's sizes are typically 1.5 sizes larger than men's. So a men's 9 is approximately a women's 10.5. In the UK system, the difference is about 0.5 sizes.
Are shoe sizes the same across all brands?
No. Shoe sizes can vary between brands and even between models from the same brand. The conversion chart provides standard equivalents, but always try shoes on or check brand-specific size guides when possible.
What does EU 44 mean in US sizes?
EU 44 is approximately US men's 10 or US women's 11.5. The EU system uses Paris points and does not differentiate between men's and women's sizing — the same EU number applies to both.
Should I size up or down when between sizes?
Generally, size up. A slightly larger shoe can be adjusted with insoles or thicker socks, while a too-small shoe causes discomfort and foot problems. This is especially true for athletic shoes where your feet swell during activity.
How accurate is the CM measurement?
The CM measurement represents foot length and is the most objective sizing method. However, shoe fit also depends on width, arch height, and toe box shape. Use CM as a starting point and adjust based on comfort.
Do children's sizes follow the same system?
Children's sizes use the same systems but with different scales. US kids' sizes restart at 1 after toddler size 13. The EU system is continuous from children through adults, making it simpler for growing feet.