| Castricum to Boppard | 203.82 mi (328.02 km) |
| Castricum to Borgentreich | 206.18 mi (331.81 km) |
| Castricum to Borgholzhausen | 156.53 mi (251.91 km) |
| Castricum to Borken | 105.52 mi (169.81 km) |
| Castricum to Borna | 348.60 mi (561.02 km) |
| Castricum to Bornheim | 159.22 mi (256.24 km) |
| Castricum to Bosel | 140.95 mi (226.84 km) |
| Castricum to Bottrop | 119.21 mi (191.85 km) |
| Castricum to Bovenden | 232.80 mi (374.66 km) |
| Castricum to Brackenheim | 306.91 mi (493.92 km) |
| Castricum to Brake | 167.85 mi (270.13 km) |
| Castricum to Brakel | 199.98 mi (321.84 km) |
| Castricum to Bramsche | 139.95 mi (225.23 km) |
| Castricum to Brand | 140.04 mi (225.37 km) |
| Castricum to Brand-Erbisdorf | 388.06 mi (624.52 km) |
