Shoe Size Converter: US, UK, EU & International Size Chart

Shoe sizes vary dramatically between countries — a US men's size 10 is a UK size 9.5 and a European size 43. When shopping online from international brands or preparing for travel, knowing your correct size in different systems prevents costly returns and uncomfortable fits. Our Shoe Size Converter instantly converts between US, UK, EU, and Japanese sizes for men, women, and children, with foot length measurements in centimeters.

International Shoe Size Systems

The US shoe sizing system differs for men and women — a US women's size 8 is roughly equivalent to a US men's size 6.5. UK sizes are typically 0.5 to 1 size smaller than US men's sizes. European sizes use a continuous scale based on the Paris point (2/3 cm increments) and do not distinguish between genders — a EU size 42 is the same for men and women. Japanese sizes use centimeters of foot length directly. The conversion is not always exact because each country uses different last lengths and width allowances. Always measure your foot length in centimeters for the most accurate conversion — this calculator uses foot length as the reference standard to minimize sizing errors.

How to Measure Your Foot Size

Stand on a piece of paper with your heel against a wall. Mark the longest toe's position and measure the distance in centimeters. Measure both feet, as one foot is usually slightly larger — buy shoes for the larger foot. Measure your feet at the end of the day when they are slightly swollen from walking. Wear the type of socks you will wear with the shoes when measuring. Add 0.5-1 cm of extra length (called "wiggle room") for comfort and to account for foot swelling during activity. Children's feet grow quickly and should be remeasured every 2-3 months. Using this converter with your actual foot measurement in centimeters gives the most reliable size across all international sizing systems.

Related Calculators

Use our Height Calculator for related body measurements. The Weight Converter converts between pounds and kilograms. Our Length Converter handles all distance unit conversions including centimeters to inches.

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