United Kingdom Size 6 3/4 to US: M
Cross-market women’s hat conversion mapping 6 3/4 specifications into M.

Analyzing Hat Size Equivalence Across Markets
United Kingdom Size 6 3/4: Features a head circumference of 55.5 (21.9 ) measured just above the brow and ears.
US: M: Features a head circumference of 56.5 (22.2 ) measured just above the brow and ears.
Other Conversions to US: M
United Kingdom Size 6 1/2 → us-m6 1/2 to us-m
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United Kingdom Size 6 5/8 → us-m6 5/8 to us-m
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United Kingdom Size 6 3/4 → us-m6 3/4 to us-m
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United Kingdom Size 6 7/8 → us-m6 7/8 to us-m
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United Kingdom Size 7 → us-m7 to us-m
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United Kingdom Size 7 1/8 → us-m7 1/8 to us-m
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United Kingdom Size 7 1/4 → us-m7 1/4 to us-m
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United Kingdom Size 7 3/8 → us-m7 3/8 to us-m
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