| Castanet-Tolosan to Cologno al Serio | 428.14 mi (689.02 km) |
| Castanet-Tolosan to Cologno Monzese | 407.52 mi (655.84 km) |
| Castanet-Tolosan to Colorno | 450.46 mi (724.94 km) |
| Castanet-Tolosan to Comacchio | 535.98 mi (862.58 km) |
| Castanet-Tolosan to Comiso | 825.16 mi (1,327.96 km) |
| Castanet-Tolosan to Como | 404.99 mi (651.77 km) |
| Castanet-Tolosan to Concordia Sagittaria | 578.77 mi (931.45 km) |
| Castanet-Tolosan to Concorezzo | 411.44 mi (662.14 km) |
| Castanet-Tolosan to Conegliano | 554.57 mi (892.50 km) |
| Castanet-Tolosan to Conselice | 517.81 mi (833.34 km) |
| Castanet-Tolosan to Conselve | 525.24 mi (845.29 km) |
| Castanet-Tolosan to Conversano | 816.77 mi (1,314.47 km) |
| Castanet-Tolosan to Copertino | 878.77 mi (1,414.24 km) |
| Castanet-Tolosan to Copparo | 520.35 mi (837.43 km) |
| Castanet-Tolosan to Corato | 777.36 mi (1,251.03 km) |
