Clothing Size Converter
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What Your Result Means
- Converted Size: The equivalent size label in the target country's system. This is a general mapping — actual fit varies by brand and cut.
- Index-Based Mapping: The converter lines up the nth size in one system with the nth size in another. Sizes are ordinal labels, not continuous measurements.
- Tops vs. Bottoms vs. Shoes: Each garment category has its own size table because numbering systems differ across clothing types, even within the same country.
How This Calculator Works
You pick a clothing category, a source system and size, and a target system. The tool looks up the position of your size in the source system's ordered list, then returns the size at the same position in the target system. No measurement-based formula is involved — it is a direct positional mapping between standardized size charts.
Quick Questions
Are these conversions exact?
They're approximate. Clothing sizes are not standardized globally, and brands within the same country often size differently. Always check the specific brand's size chart when ordering online.
What about half sizes or in-between sizes?
The converter includes half sizes for shoes but uses standard whole sizes for tops and bottoms. If you fall between two sizes, try both and choose based on your preferred fit.
Do men's and women's sizes use the same chart?
This tool uses a general unisex reference chart. Men's and women's sizing can differ significantly — for example, a US women's shoe 8 is roughly a men's 6.5. Check a gender-specific chart for precise conversions.
Why does Japan use odd numbers for tops?
Japanese women's clothing traditionally uses odd-numbered sizing (5, 7, 9, 11, etc.) where the number loosely relates to body measurements in a Japanese industrial standard. It's a convention rather than a direct centimeter measurement.
Sources
- Wikipedia — Clothing Sizes (international sizing systems and history)
- Wikipedia — Shoe Size (US, UK, EU, and Japanese shoe sizing standards)
Method & review
Estimate only. Results reflect your inputs and standard formulas. Double-check important decisions independently.