How to choose correct Size？

EU Size 35 =Foot length 22.5 cm=China Size 35

EU Size 36 =Foot length 23.0 cm=China Size 36

EU Size 37 =Foot length 23.5 cm=China Size 37

EU Size 38 =Foot length 24.0 cm=China Size 38

EU Size 39 =Foot length 24.5 cm=China Size 39

EU Size 40 =Foot length 25.0 cm=China Size 40

EU Size 41 =Foot length 25.5 cm=China Size 41

EU Size 42 =Foot length 26.0 cm=China Size 42

EU Size 43 =Foot length 26.5 cm=China Size 43

EU Size 44 =Foot length 27.0 cm=China Size 44

EU Size 45 =Foot length 27.5 cm=China Size 45