| Castricum to Kecskemet | 773.87 mi (1,245.43 km) |
| Castricum to Kerepestarcsa | 732.20 mi (1,178.36 km) |
| Castricum to Keszthely | 688.50 mi (1,108.03 km) |
| Castricum to Kiskoros | 770.23 mi (1,239.56 km) |
| Castricum to Kiskunfelegyhaza | 788.17 mi (1,268.44 km) |
| Castricum to Kiskunhalas | 785.88 mi (1,264.76 km) |
| Castricum to Kiskunlachaza | 736.29 mi (1,184.95 km) |
| Castricum to Kiskunmajsa | 792.70 mi (1,275.73 km) |
| Castricum to Kisujszallas | 803.51 mi (1,293.13 km) |
| Castricum to Kisvarda | 821.11 mi (1,321.46 km) |
| Castricum to Komarom | 680.77 mi (1,095.59 km) |
| Castricum to Komlo | 751.11 mi (1,208.79 km) |
| Castricum to Kormend | 654.56 mi (1,053.41 km) |
| Castricum to Koszeg | 636.36 mi (1,024.13 km) |
| Castricum to Lajosmizse | 763.98 mi (1,229.51 km) |
