Shoe Size Converter

Convert a known adult shoe size to approximate international equivalents and foot length.

Known size system

Known size

—Approximate adult sizing. Brands and shoe shapes can fit differently.

—US Men

—US Women

—UK

—EU

—Estimated foot length

—Foot length inches

Core conversion workflows

Start with a broad dimension converter or jump to the most common metric/imperial pairs. Specialist converters remain available from the full hub.

All 134 converters

Unit ConverterAll-in-one measurement conversion Length ConverterMetric and imperial length units Weight ConverterMass and weight units Temperature ConverterCelsius, Fahrenheit and Kelvin Inches → CMExact 2.54 conversion CM → InchesReverse exact length conversion KG → LBSKilograms to pounds LBS → KGPounds to kilograms °F → °CFahrenheit to Celsius °C → °FCelsius to Fahrenheit Miles → KMMiles to kilometers KM → MilesKilometers to miles

Foot-length anchored size crosswalk with tolerance

Use measured foot length as the common reference and see approximate US, UK and EU sizes. A ±0.3 cm sensitivity row makes brand/last variation visible instead of implying an exact universal match.

Foot length (cm)US sizingTolerance (cm)

—Approx. US

—Approx. UK

—Approx. EU

Foot cm	US	UK	EU

Why shoe-size matches are approximate

International shoe systems are based on different lasts and sizing conventions, so a numeric conversion is an estimate rather than a guarantee of fit. Brand, width, toe shape and intended use can shift the best size. Use measured foot length and the manufacturer’s chart when buying footwear.