Shoe Size Converter
Example: US 10 Men's = EU 43 = UK 9.5
Shopping for shoes internationally? This converter helps you find your size in another system. Enter your current shoe size to see equivalents in US, EU, UK, and Japanese sizing. It works for both men's and women's shoes.
Converted Size
US Men's
US Women's
EU
UK Men's
UK Women's
JP (cm)
Foot Length (cm)
How We Calculate This
Conversions are based on foot length in centimeters. US Men's = (foot length - 22) / 0.847 + 1. EU = foot length × 1.5 + 2. UK = US - 0.5. JP = foot length in cm.
Methodology last reviewed: May 2026. How SparkCalc works
Sources: ISO 19407:2023: Footwear: Sizing: Conversion of sizing systems · ISO 9407:2019: Footwear sizing: Mondopoint system of sizing and marking · ISO 8559-1:2017: Size designation of clothes: Anthropometric definitions for body measurement
Frequently Asked Questions
How do US and EU shoe sizes compare?
EU sizes are roughly 33 numbers higher than US men's sizes. For example, US 10 equals approximately EU 43. Women's US sizes are 1.5 higher than men's for the same EU size.
What is the difference between US and UK shoe sizes?
UK sizes are typically 0.5 smaller than US sizes for the same foot length. So a US 10 is roughly a UK 9.5.
How does Japanese shoe sizing work?
Japanese shoe sizes are based on foot length in centimeters. A JP 27 means the shoe fits a foot approximately 27 cm long.
Why do shoe sizes vary between brands?
Each brand has its own lasts (foot molds) and fit preferences. This chart provides standard conversions, but you may need to size up or down depending on the brand and shoe style.
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