| Ciechanow to Isny im Allgau | 587.77 mi (945.92 km) |
| Ciechanow to Isselburg | 601.15 mi (967.46 km) |
| Ciechanow to Issum | 607.63 mi (977.89 km) |
| Ciechanow to Itzehoe | 463.31 mi (745.62 km) |
| Ciechanow to Jena | 408.01 mi (656.63 km) |
| Ciechanow to Jever | 528.28 mi (850.18 km) |
| Ciechanow to Jork | 455.15 mi (732.49 km) |
| Ciechanow to Juchen | 612.53 mi (985.77 km) |
| Ciechanow to Julich | 622.19 mi (1,001.32 km) |
| Ciechanow to Juterbog | 324.02 mi (521.45 km) |
| Ciechanow to Kaarst | 605.47 mi (974.40 km) |
| Ciechanow to Kaiserslautern | 604.47 mi (972.80 km) |
| Ciechanow to Kalkar | 609.84 mi (981.45 km) |
| Ciechanow to Kall | 622.74 mi (1,002.20 km) |
| Ciechanow to Kaltenkirchen | 444.82 mi (715.88 km) |
