Our Methodology

How we ensure accurate size conversions across different regions and brands

Core Approach

We use canonical body/foot measures and deterministic formulas to map to regional sizes. This ensures consistency and accuracy across all conversions.

Shoe Sizing Formulas

We use comprehensive lookup tables based on actual foot length measurements in millimeters. Each size corresponds to a specific foot length range, ensuring accurate conversions across all regions.

Size Range Coverage:

Men's: US 5-16, EU 37.5-51, UK 4.5-15.5
Women's: US 4-13, EU 34-43.5, UK 1.5-10.5
All sizes based on foot length from 216mm to 325mm

Clothing Categories

Shirts: Based on chest/bust measurements in cm, with size ranges from XXS to 5XL

Pants/Jeans: Waist measurements in cm/inches, covering sizes 26-50 (men's) and 0-28 (women\'s)

Dresses: Bust measurements with comprehensive US 0-28, EU 30-58 coverage

Bras: Complete band sizes 28-48 with cup sizes A-G, totaling 77 size combinations

International Coverage

Our conversion tables cover 12+ international regions: US, EU, UK, JP, KR, CN, IN, AU, CA, MX, BR, RU. Each region follows its specific sizing conventions and standards.

Regional Standards:

US/CA: Imperial-based sizing
EU/RU: Metric European standards
UK/AU/IN: British sizing system
JP/KR/CN: Asian metric standards
MX/BR: Regional metric variations

Data Accuracy & Updates

Our size conversion tables are based on industry standards and manufacturer specifications. All data is synchronized between the calculator and size charts to ensure consistency. We regularly update our tables based on user feedback and industry changes.

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