| Castricum to Blumberg | 367.57 mi (591.55 km) |
| Castricum to Bobenheim-Roxheim | 260.18 mi (418.72 km) |
| Castricum to Bobingen | 400.87 mi (645.14 km) |
| Castricum to Boblingen | 327.95 mi (527.78 km) |
| Castricum to Bocholt | 96.30 mi (154.97 km) |
| Castricum to Bochum | 131.12 mi (211.02 km) |
| Castricum to Bockenem | 233.93 mi (376.48 km) |
| Castricum to Bockhorn | 151.23 mi (243.38 km) |
| Castricum to Bogen | 430.79 mi (693.28 km) |
| Castricum to Bohl-Iggelheim | 270.76 mi (435.75 km) |
| Castricum to Bohmte | 154.17 mi (248.12 km) |
| Castricum to Boizenburg | 257.97 mi (415.16 km) |
| Castricum to Bonen | 146.85 mi (236.33 km) |
| Castricum to Bonn | 163.20 mi (262.65 km) |
| Castricum to Bopfingen | 356.18 mi (573.21 km) |
