| Castelfidardo to Boppard | 545.32 mi (877.61 km) |
| Castelfidardo to Borgentreich | 594.38 mi (956.55 km) |
| Castelfidardo to Borgholzhausen | 644.05 mi (1,036.50 km) |
| Castelfidardo to Borken | 655.88 mi (1,055.54 km) |
| Castelfidardo to Borna | 530.99 mi (854.54 km) |
| Castelfidardo to Bornheim | 589.94 mi (949.42 km) |
| Castelfidardo to Bosel | 707.17 mi (1,138.08 km) |
| Castelfidardo to Bottrop | 636.39 mi (1,024.17 km) |
| Castelfidardo to Bovenden | 586.13 mi (943.29 km) |
| Castelfidardo to Brackenheim | 443.09 mi (713.08 km) |
| Castelfidardo to Brake | 719.90 mi (1,158.56 km) |
| Castelfidardo to Brakel | 605.07 mi (973.77 km) |
| Castelfidardo to Bramsche | 668.46 mi (1,075.79 km) |
| Castelfidardo to Brand | 610.74 mi (982.90 km) |
| Castelfidardo to Brand-Erbisdorf | 511.72 mi (823.54 km) |
