| Castricum to Azcoitia | 722.94 mi (1,163.46 km) |
| Castricum to Azpeitia | 721.85 mi (1,161.70 km) |
| Castricum to Azuqueca de Henares | 908.57 mi (1,462.20 km) |
| Castricum to Badajoz | 1,095.76 mi (1,763.46 km) |
| Castricum to Badalona | 776.48 mi (1,249.63 km) |
| Castricum to Baena | 1,118.96 mi (1,800.80 km) |
| Castricum to Baeza | 1,079.74 mi (1,737.67 km) |
| Castricum to Bailen | 1,078.52 mi (1,735.70 km) |
| Castricum to Balaguer | 764.93 mi (1,231.04 km) |
| Castricum to Banolas | 726.09 mi (1,168.53 km) |
| Castricum to Baranain | 734.59 mi (1,182.20 km) |
| Castricum to Barbadanes | 917.61 mi (1,476.75 km) |
| Castricum to Barbastro | 756.57 mi (1,217.58 km) |
| Castricum to Barcelona | 780.35 mi (1,255.86 km) |
| Castricum to Bargas | 963.44 mi (1,550.51 km) |
