| Skien to Collegno | 979.82 mi (1,576.88 km) |
| Skien to Cologno al Serio | 941.40 mi (1,515.04 km) |
| Skien to Cologno Monzese | 945.23 mi (1,521.20 km) |
| Skien to Colorno | 986.90 mi (1,588.27 km) |
| Skien to Comacchio | 1,008.45 mi (1,622.95 km) |
| Skien to Comiso | 1,554.38 mi (2,501.53 km) |
| Skien to Como | 925.90 mi (1,490.09 km) |
| Skien to Concordia Sagittaria | 938.73 mi (1,510.73 km) |
| Skien to Concorezzo | 940.98 mi (1,514.37 km) |
| Skien to Conegliano | 927.41 mi (1,492.52 km) |
| Skien to Conselice | 1,019.58 mi (1,640.86 km) |
| Skien to Conselve | 970.37 mi (1,561.66 km) |
| Skien to Conversano | 1,302.23 mi (2,095.73 km) |
| Skien to Copertino | 1,360.05 mi (2,188.79 km) |
| Skien to Copparo | 993.18 mi (1,598.37 km) |
