| Karlovo to Cologno al Serio | 775.13 mi (1,247.45 km) |
| Karlovo to Cologno Monzese | 794.64 mi (1,278.85 km) |
| Karlovo to Colorno | 735.56 mi (1,183.78 km) |
| Karlovo to Comacchio | 645.97 mi (1,039.59 km) |
| Karlovo to Comiso | 668.81 mi (1,076.34 km) |
| Karlovo to Como | 807.02 mi (1,298.78 km) |
| Karlovo to Concordia Sagittaria | 629.56 mi (1,013.18 km) |
| Karlovo to Concorezzo | 792.56 mi (1,275.51 km) |
| Karlovo to Conegliano | 657.42 mi (1,058.02 km) |
| Karlovo to Conselice | 661.39 mi (1,064.40 km) |
| Karlovo to Conselve | 667.40 mi (1,074.07 km) |
| Karlovo to Conversano | 412.51 mi (663.87 km) |
| Karlovo to Copertino | 386.38 mi (621.82 km) |
| Karlovo to Copparo | 665.01 mi (1,070.23 km) |
| Karlovo to Corato | 444.31 mi (715.05 km) |
