| Castricum to Borgosatollo | 549.77 mi (884.76 km) |
| Castricum to Borgosesia | 499.24 mi (803.44 km) |
| Castricum to Boscoreale | 935.91 mi (1,506.20 km) |
| Castricum to Boscotrecase | 934.49 mi (1,503.92 km) |
| Castricum to Botticino Sera | 546.06 mi (878.79 km) |
| Castricum to Bovalino Marina | 1,137.75 mi (1,831.04 km) |
| Castricum to Boves | 582.77 mi (937.88 km) |
| Castricum to Boville Ernica | 857.90 mi (1,380.66 km) |
| Castricum to Bovisio Masciago | 519.98 mi (836.83 km) |
| Castricum to Bovolone | 583.13 mi (938.46 km) |
| Castricum to Bra | 561.38 mi (903.46 km) |
| Castricum to Bracciano | 802.24 mi (1,291.08 km) |
| Castricum to Brandizzo | 529.32 mi (851.85 km) |
| Castricum to Breganze | 566.30 mi (911.36 km) |
| Castricum to Brembate | 528.32 mi (850.25 km) |
