| Castricum to Berga | 733.86 mi (1,181.04 km) |
| Castricum to Berja | 1,146.16 mi (1,844.56 km) |
| Castricum to Bermeo | 716.64 mi (1,153.33 km) |
| Castricum to Berriozar | 732.35 mi (1,178.60 km) |
| Castricum to Betanzos | 872.62 mi (1,404.34 km) |
| Castricum to Betera | 927.84 mi (1,493.22 km) |
| Castricum to Bilbao | 731.11 mi (1,176.60 km) |
| Castricum to Binefar | 766.83 mi (1,234.09 km) |
| Castricum to Binisalem | 893.27 mi (1,437.57 km) |
| Castricum to Blanes | 756.54 mi (1,217.54 km) |
| Castricum to Boadilla del Monte | 930.73 mi (1,497.87 km) |
| Castricum to Boiro | 928.33 mi (1,494.01 km) |
| Castricum to Bolanos de Calatrava | 1,025.60 mi (1,650.55 km) |
| Castricum to Bollullos de la Mitacion | 1,173.62 mi (1,888.76 km) |
| Castricum to Bollullos par del Condado | 1,182.23 mi (1,902.61 km) |
