| Castricum to Beyne-Heusay | 140.09 mi (225.45 km) |
| Castricum to Bierbeek | 118.69 mi (191.01 km) |
| Castricum to Bilzen | 121.86 mi (196.12 km) |
| Castricum to Binche | 150.10 mi (241.56 km) |
| Castricum to Bissegem | 134.90 mi (217.11 km) |
| Castricum to Blankenberge | 108.72 mi (174.97 km) |
| Castricum to Blegny | 137.93 mi (221.98 km) |
| Castricum to Bocholt | 102.85 mi (165.53 km) |
| Castricum to Boechout | 97.05 mi (156.18 km) |
| Castricum to Bonheiden | 104.95 mi (168.90 km) |
| Castricum to Boom | 102.15 mi (164.39 km) |
| Castricum to Boortmeerbeek | 108.33 mi (174.34 km) |
| Castricum to Borgerhout | 92.97 mi (149.62 km) |
| Castricum to Borgloon | 124.19 mi (199.87 km) |
| Castricum to Bornem | 101.88 mi (163.96 km) |
