Ladies boot sizes in cms Size 3 3½ 4 4½ 5 5½ 6 6½ 7 7½ 8 Short Narrow Style 6435 height: 39 39 40 40 40.5 40.5 40.5 41.5 41.5 41.5 41.5 calf: 33.5-38.5 33.5-38.5 34-39 34-39 34.5-39.5 34.5-39.5 34.5-39.5 35-40 35-40 35-40 35-40 Tall Narrow Style 6635 height: 43.5 43.5 44.5 44.5 45.5 45.5 45.5 46 46 46.5 46.5 calf: 33.5-37.5 33.5-37.5 34-38.5 34.5-39 34.5-39 34.5-39 35-39.5 35-39.5 35-39.5 35-39.5 35-39.5 Short Medium Style 6425 height:   Not available 40 40 40.5 40.5 40.5 41.5 41.5 41.5 41.5 calf: 35-40 35-40 35.5-40.5 35.5-40.5 35.5-40.5 36.5-41.5 36.5-41.5 36.5-41.5 36.5-41.5 Medium Style 6460 height:   Not available 42 42 43 43 43 43.5 43.5 44 44 calf: 35-40 35-40 36-41 36-41 36-41 36.5-41.5 36.5-41.5 37-42 37-42 Tall Medium Style 6660 height:   Not available 44.5 44.5 45.5 45.5 45.5 46 46 46.5 46.5 calf: 35-39.5 35-39.5 36-40.5 36-40.5 36-40.5 36.5-41 36.5-41 37-42 37-42 Short Wide Style 6440 height: 39 39 40.5 40.5 41 41 41 41.5 41.5 41.5 41.5 calf: 36-41 36-41 37-42 37-42 38-43 38-43 38-43 38.5-43.5 38.5-43.5 39-44 39-44 Medium Wide Style 6540 height:   Not available 42 42 43 43 43 43.5 43.5 44 44 calf: 37-42 37-42 38-43 38-43 38-43 38.5-43.5 38.5-43.5 39-44 39-44 Tall Wide Style 6640 height:   Not available 44.5 44.5 45.5 45.5 45.5 46 46 46.5 46.5 calf: 37-42 37-42 38-43 38-43 38-43 38.5-43.5 38.5-43.5 38-44 38-44 Short Extra Wide Style 6430 height:   Not available 40.5 40.5 41 41 41 41.5 41.5 41.5 41.5 calf: 41-47.2 41-47.2 41-47.2 42-48.2 42-48.2 43-49.2 43-49.2 43-49.2 43-49.2 Medium Extra Wide Style 6530 height:   Not available 42 42 43 43 43 43.5 43.5 44 44 calf: 41-47.2 41-47.2 41-47.2 42-48.2 42-48.2 43-49.2 43-49.2 43-49.2 43-49.2 Tall Extra Wide Style 6630 height:   Not available 44.5 44.5 45.5 45.5 45.5 46 46 46.5 46.5 calf: 41-46 41-46 41-46 42-47 42-47 43-48 43-48 43-48 43-48 Size 3 3½ 4 4½ 5 5½ 6 6½ 7 7½ 8