Europe Size 18 to US: 10.5
Cross-market children’s footwear conversion mapping 18 specifications into 10.5 for sneakers, boots, sandals, dress shoes, slippers, and dance shoes.

Analyzing Footwear Size Equivalence Across Markets
Europe Size 18: Corresponds to a foot length of10.0 (3.9 ), estimated age 6-9m, and Mondopoint 100 .
US: 10.5: Corresponds to a foot length of 18.2 (7.2 ), estimated age 7-8y, and Mondopoint 182 .
Other Conversions to US: 10.5
Europe Size 16 → us-10-516 to us-10-5
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Europe Size 16.5 → us-10-516.5 to us-10-5
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Europe Size 17 → us-10-517 to us-10-5
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Europe Size 18 → us-10-518 to us-10-5
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Europe Size 18.5 → us-10-518.5 to us-10-5
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Europe Size 19 → us-10-519 to us-10-5
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Europe Size 19.5 → us-10-519.5 to us-10-5
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Europe Size 20 → us-10-520 to us-10-5
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Europe Size 21 → us-10-521 to us-10-5
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Europe Size 21.5 → us-10-521.5 to us-10-5
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Europe Size 22 → us-10-522 to us-10-5
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Europe Size 23 → us-10-523 to us-10-5
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