International Shoe Size Conversion Calculator
Use our free online Shoe Size Converter to perform fast, accurate calculations with instant formulas, step-by-step arithmetic, and verified reference benchmarks.
Shoe Size Converter
Instant Live Computation • Zero Waiting
Adjust inputs on the left for instantaneous live computation.
How to Calculate: The Shoe Size Converter Formula
Converts shoe sizing standards based on the Paris Point system (EU = 2/3 cm per unit) and the Barleycorn system (UK/US = 1/3 inch per full size).
Step-by-Step Calculation Guide
- Select original sizing standard (US Men, US Women, UK, EU, or CM).
- Input shoe size number.
- Review converted equivalent sizes across international markets.
- Compare exact foot length measurements in centimeters and inches.
Practical Shoe Size Converter Examples
US Men's Size 10.0.
US Women's Size 8.0.
International Adult Shoe Size Cross-Reference Table
Official reference values and benchmark classifications based on standard institutional guidelines.
| Foot Length (cm) | US Men | US Women | UK Size | European (EU) |
|---|---|---|---|---|
| 23.5 cm | 5.5 | 7.0 | 4.5 | 37.5 |
| 24.5 cm | 6.5 | 8.0 | 5.5 | 39.0 |
| 25.5 cm | 7.5 | 9.0 | 6.5 | 40.5 |
| 27.0 cm | 9.0 | 10.5 | 8.0 | 42.5 |
| 28.0 cm | 10.0 | 11.5 | 9.0 | 44.0 |
| 29.0 cm | 11.5 | 13.0 | 10.5 | 45.5 |
Frequently Asked Questions about Shoe Size Converter
What is the difference between US Men and US Women shoe sizes?
In US sizing, women's sizes are approximately 1.5 sizes larger than men's for the same foot length (e.g. a Men's 8.5 is equivalent to a Women's 10.0).
What is Mondopoint sizing?
Mondopoint is the ISO international shoe sizing system (ISO 9407) based on exact foot length and foot width in millimeters, widely used in ski boots and military footwear.
How should you measure your foot length accurately?
Stand on a sheet of paper with your heel against a flat wall, mark the tip of your longest toe, and measure the distance to the wall in centimeters.
Why do shoe sizes differ across brands?
Different manufacturers use proprietary shoe lasts (molds), causing athletic shoes (Nike, Adidas) to fit tighter than dress shoes or hiking boots.