Size Fit ConverterShoe, Clothing, Bra, Ring & HatUS, UK, EU, Asian Size Conversion
Free size converter for shoes, clothing, bras, rings, and hats. Convert US to UK, EU to US, Asian sizes, and more. Includes brand charts (Nike, Adidas, New Balance), kids conversion, and measurement guides.
Quick Size Reference
Get instant conversions for the most common sizes
Our Conversion Tools
Professional-grade tools designed for accuracy and ease of use
Shoe Size Converter
Convert between US, UK, EU, Japanese, and CM measurements for men's and women's shoes
Clothing Size Converter
Convert clothing sizes with detailed measurement guidance for perfect fit
Bra Size Calculator
Calculate your perfect bra size with our measurement guide and international conversion
Kids Shoe Size Converter
Convert children's shoe sizes with age reference and foot length measurements
Kids Clothing Size Converter
Convert children's clothing sizes with height, weight, and age reference
Ring Size Converter
Convert ring sizes between US, UK, EU, Japanese standards and millimeters
Hat Size Converter
Convert hat sizes between US, UK, EU, and CM/IN measurements for fitted, stretchy, and numbered hats
Top Size Converter
Find your perfect top size using body measurements (chest, waist, hips) across brands and fit types
Brand Shoe Size Converter
Compare shoe sizes across major brands: Nike, Adidas, New Balance, Converse, Vans, and more
Men's to Women's Shoe Size Converter
Convert between men's and women's shoe sizes with accurate US, UK, EU, and CM measurements
Printable Ring Sizer
Download and print a free ring size chart to measure your ring size at home accurately
Why Choose SizeFit?
Accurate Conversions
Based on official size standards and real user data
Global Standards
Support for US, UK, EU, Asian, and other international sizes
Fast & Easy
Quick conversion with intuitive interface
Popular Size Conversions
Quick access to the most searched conversions