Europe Size 21 to US: 2
Cross-market children’s footwear conversion mapping 21 specifications into 2 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

Analyzing Footwear Size Equivalence Across Markets
Europe Size 21: Corresponds to a foot length of12.5 (4.9 ), estimated age 24m, and Mondopoint 125 .
US: 2: Corresponds to a foot length of 10.0 (3.9 ), estimated age 6-9m, and Mondopoint 100 .
Other Conversions to US: 2
Europe Size 16 → us-216 to us-2
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Europe Size 16.5 → us-216.5 to us-2
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Europe Size 17 → us-217 to us-2
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Europe Size 18 → us-218 to us-2
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Europe Size 18.5 → us-218.5 to us-2
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Europe Size 19 → us-219 to us-2
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Europe Size 19.5 → us-219.5 to us-2
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Europe Size 20 → us-220 to us-2
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Europe Size 21 → us-221 to us-2
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Europe Size 21.5 → us-221.5 to us-2
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Europe Size 22 → us-222 to us-2
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Europe Size 23 → us-223 to us-2
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