| Ciechanow to Karditsa | 934.74 mi (1,504.32 km) |
| Ciechanow to Kastoria | 853.82 mi (1,374.09 km) |
| Ciechanow to Katerini | 875.00 mi (1,408.18 km) |
| Ciechanow to Keratsini | 1,039.37 mi (1,672.71 km) |
| Ciechanow to Kerkyra | 915.61 mi (1,473.53 km) |
| Ciechanow to Kiato | 1,031.48 mi (1,660.01 km) |
| Ciechanow to Kifisia | 1,032.75 mi (1,662.05 km) |
| Ciechanow to Kilkis | 827.69 mi (1,332.04 km) |
| Ciechanow to Komotini | 843.20 mi (1,357.01 km) |
| Ciechanow to Korinthos | 1,037.28 mi (1,669.34 km) |
| Ciechanow to Koropi | 1,045.71 mi (1,682.90 km) |
| Ciechanow to Korydallos | 1,038.46 mi (1,671.24 km) |
| Ciechanow to Kos | 1,151.69 mi (1,853.46 km) |
| Ciechanow to Kozani | 869.96 mi (1,400.07 km) |
| Ciechanow to Lagos | 840.78 mi (1,353.10 km) |
