| Castricum to Isny im Allgau | 411.24 mi (661.82 km) |
| Castricum to Isselburg | 90.91 mi (146.31 km) |
| Castricum to Issum | 102.24 mi (164.54 km) |
| Castricum to Itzehoe | 221.85 mi (357.03 km) |
| Castricum to Jena | 316.42 mi (509.22 km) |
| Castricum to Jever | 151.78 mi (244.26 km) |
| Castricum to Jork | 219.09 mi (352.60 km) |
| Castricum to Juchen | 127.12 mi (204.58 km) |
| Castricum to Julich | 133.74 mi (215.23 km) |
| Castricum to Juterbog | 357.27 mi (574.98 km) |
| Castricum to Kaarst | 124.10 mi (199.72 km) |
| Castricum to Kaiserslautern | 253.38 mi (407.78 km) |
| Castricum to Kalkar | 88.84 mi (142.97 km) |
| Castricum to Kall | 160.13 mi (257.71 km) |
| Castricum to Kaltenkirchen | 236.47 mi (380.57 km) |
