| Castano Primo to Beyne-Heusay | 378.39 mi (608.97 km) |
| Castano Primo to Bierbeek | 408.75 mi (657.82 km) |
| Castano Primo to Bilzen | 396.56 mi (638.20 km) |
| Castano Primo to Binche | 396.77 mi (638.54 km) |
| Castano Primo to Bissegem | 444.46 mi (715.28 km) |
| Castano Primo to Blankenberge | 473.97 mi (762.77 km) |
| Castano Primo to Blegny | 380.14 mi (611.77 km) |
| Castano Primo to Bocholt | 415.00 mi (667.87 km) |
| Castano Primo to Boechout | 433.86 mi (698.23 km) |
| Castano Primo to Bonheiden | 425.75 mi (685.17 km) |
| Castano Primo to Boom | 432.29 mi (695.70 km) |
| Castano Primo to Boortmeerbeek | 422.02 mi (679.18 km) |
| Castano Primo to Borgerhout | 438.49 mi (705.68 km) |
| Castano Primo to Borgloon | 395.58 mi (636.62 km) |
| Castano Primo to Bornem | 436.17 mi (701.95 km) |
