Women's Clothing Size Converter
Convert dress and top sizes between UK, US, EU, Italian, French and Japanese systems.
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Hat Size Converter
Head circumference to UK and US fitted hat sizes and S–XL labels.
How to use this tool
Measure around your head just above the eyebrows and ears, where the hat band will sit. Keep the tape snug but not tight, and size up if you are between sizes.
More Size & Fit tools
Men's Clothing Size Converter
Convert suit, jacket and shirt sizes between UK, US and EU using chest size.
Women's Shoe Size Converter
Convert women's shoe sizes between UK, US and EU, with foot length in centimetres.