| Ciechanow to Collegno | 798.12 mi (1,284.45 km) |
| Ciechanow to Cologno al Serio | 703.26 mi (1,131.78 km) |
| Ciechanow to Cologno Monzese | 719.44 mi (1,157.82 km) |
| Ciechanow to Colorno | 717.75 mi (1,155.11 km) |
| Ciechanow to Comacchio | 681.91 mi (1,097.43 km) |
| Ciechanow to Comiso | 1,137.67 mi (1,830.91 km) |
| Ciechanow to Como | 711.13 mi (1,144.45 km) |
| Ciechanow to Concordia Sagittaria | 602.20 mi (969.14 km) |
| Ciechanow to Concorezzo | 714.43 mi (1,149.76 km) |
| Ciechanow to Conegliano | 610.06 mi (981.80 km) |
| Ciechanow to Conselice | 701.69 mi (1,129.26 km) |
| Ciechanow to Conselve | 659.11 mi (1,060.74 km) |
| Ciechanow to Conversano | 838.53 mi (1,349.48 km) |
| Ciechanow to Copertino | 879.03 mi (1,414.66 km) |
| Ciechanow to Copparo | 679.27 mi (1,093.17 km) |
