Shoe Size Converter
Convert shoe sizes between US, UK, EU, and international standards for men, women, and kids. Free online shoe size converter for global shopping and footwear retail.
Shoe Size Measurement Systems
Shoe sizes vary by country and gender. The Brannock Device measures foot length and width in the US. EU sizes use Paris points (2/3 cm). UK sizes use barleycorns (1/3 inch). Understanding these systems helps when buying shoes internationally.
Size Conversion Formulas
EU = (US + 1) × 1.5 + 30 (approximate)
UK = US - 1 (men), US - 2 (women)
CM = (US + 1) × 0.847 + 18 (men)
JP = CM (Japanese uses centimeters)
Formulas provide estimates only. Actual sizes vary by brand and style. Always try shoes when possible. Measure feet at end of day for best fit.
Men's Shoe Size Conversion Table
| US | UK | EU | CM | Inches |
|---|---|---|---|---|
| 6 | 5.5 | 38.5 | 24 | 9.4 |
| 7 | 6.5 | 40 | 25 | 9.8 |
| 8 | 7.5 | 41 | 26 | 10.2 |
| 9 | 8.5 | 42.5 | 27 | 10.6 |
| 10 | 9.5 | 44 | 28 | 11.0 |
| 11 | 10.5 | 45 | 29 | 11.4 |
| 12 | 11.5 | 46 | 30 | 11.8 |
| 13 | 12.5 | 47.5 | 31 | 12.2 |
Women's Shoe Size Conversion Table
| US | UK | EU | CM | Inches |
|---|---|---|---|---|
| 5 | 3 | 35.5 | 22 | 8.7 |
| 6 | 4 | 36.5 | 23 | 9.1 |
| 7 | 5 | 37.5 | 24 | 9.4 |
| 8 | 6 | 38.5 | 25 | 9.8 |
| 9 | 7 | 40 | 26 | 10.2 |
| 10 | 8 | 41 | 27 | 10.6 |
| 11 | 9 | 42.5 | 28 | 11.0 |
| 12 | 10 | 44 | 29 | 11.4 |
How to Measure Foot Size
Using the Brannock Device
Stand with full weight on foot
Heel against back of device
Slide marker to longest toe
Read length and width measurements
Home Measurement Method
Place foot on paper
Trace around foot with pencil
Measure heel to longest toe
Compare to size chart
Width Measurement
Measure widest part of foot
Usually across ball of foot
Compare to width chart
US widths: AAA (narrow) to EEE (wide)
Best Measurement Practices
Measure at end of day
Feet swell throughout day
Measure both feet
Use larger foot for sizing
Size Conversion Examples
Example 1: US Men's to EU
US Men's: 10
UK: 9.5
EU: 44
CM: 28
Example 2: US Women's to UK
US Women's: 8
UK: 6
EU: 38.5
CM: 25
Example 3: Kids to Adult
US Kids 4 = US Women's 6
US Kids 4 = US Men's 4.5
Transition at size 4
Check specific brand charts
Example 4: Athletic Shoe Sizing
Running shoes: Size up 0.5
Basketball: True to size
Soccer cleats: Snug fit
Hiking boots: Room for thick socks
Frequently Asked Questions
Why are men's and women's shoe sizes different?
Men's and women's feet have different proportions. Women's sizes are typically 1.5-2 sizes higher than men's for the same foot length. A men's 8 equals approximately a women's 9.5-10.
How often should I measure my feet?
Measure feet every 1-2 years. Feet change with age, weight, and pregnancy. Measure before buying expensive shoes. Children need measurement every 2-3 months during growth spurts.
What if my feet are different sizes?
Most people have one foot slightly larger. Always fit to the larger foot. Use insoles or pads for the smaller foot if needed. Custom orthotics can address significant differences.
Do shoe sizes vary by brand?
Yes, sizes vary significantly between brands. Nike runs narrow. New Balance offers multiple widths. European brands often run smaller. Always check brand-specific size charts and reviews.
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