Europe Size 16.5 to US: 4
Cross-market children’s footwear conversion mapping 16.5 specifications into 4 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

Analyzing Footwear Size Equivalence Across Markets
Europe Size 16.5: Corresponds to a foot length of9.0 (3.5 ), estimated age 3-6m, and Mondopoint 90 .
US: 4: Corresponds to a foot length of 12.0 (4.7 ), estimated age 18-24m, and Mondopoint 120 .
Other Conversions to US: 4
Europe Size 16 → us-416 to us-4
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Europe Size 16.5 → us-416.5 to us-4
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Europe Size 17 → us-417 to us-4
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Europe Size 18 → us-418 to us-4
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Europe Size 18.5 → us-418.5 to us-4
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Europe Size 19 → us-419 to us-4
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Europe Size 19.5 → us-419.5 to us-4
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Europe Size 20 → us-420 to us-4
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Europe Size 21 → us-421 to us-4
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Europe Size 21.5 → us-421.5 to us-4
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Europe Size 22 → us-422 to us-4
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Europe Size 23 → us-423 to us-4
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