| Skien to Cividale del Friuli | 919.78 mi (1,480.24 km) |
| Skien to Civita Castellana | 1,174.89 mi (1,890.81 km) |
| Skien to Civitanova Marche | 1,113.37 mi (1,791.80 km) |
| Skien to Civitavecchia | 1,185.98 mi (1,908.65 km) |
| Skien to Civitella in Val di Chiana | 1,094.93 mi (1,762.12 km) |
| Skien to Clusone | 920.80 mi (1,481.89 km) |
| Skien to Coccaglio | 942.93 mi (1,517.50 km) |
| Skien to Codigoro | 998.98 mi (1,607.70 km) |
| Skien to Codogno | 970.65 mi (1,562.11 km) |
| Skien to Codroipo | 926.11 mi (1,490.43 km) |
| Skien to Cogoleto | 1,024.58 mi (1,648.90 km) |
| Skien to Colle di Val d'Elsa | 1,094.29 mi (1,761.09 km) |
| Skien to Colle Salvetti | 1,079.13 mi (1,736.70 km) |
| Skien to Collecchio | 999.34 mi (1,608.29 km) |
| Skien to Colleferro | 1,216.56 mi (1,957.86 km) |
