| Isernia to Carpentras | 495.26 mi (797.04 km) |
| Isernia to Carquefou | 867.83 mi (1,396.64 km) |
| Isernia to Carqueiranne | 429.35 mi (690.98 km) |
| Isernia to Carrieres-sous-Poissy | 779.00 mi (1,253.68 km) |
| Isernia to Carrieres-sur-Seine | 768.33 mi (1,236.51 km) |
| Isernia to Carros | 387.84 mi (624.16 km) |
| Isernia to Carvin | 816.72 mi (1,314.38 km) |
| Isernia to Castanet-Tolosan | 661.08 mi (1,063.91 km) |
| Isernia to Castelginest | 665.95 mi (1,071.75 km) |
| Isernia to Castelnau-le-Lez | 543.66 mi (874.94 km) |
| Isernia to Castelnaudary | 636.74 mi (1,024.74 km) |
| Isernia to Castelsarrasin | 685.69 mi (1,103.51 km) |
| Isernia to Castres | 624.59 mi (1,005.18 km) |
| Isernia to Caudebec-les-Elbeuf | 829.84 mi (1,335.49 km) |
| Isernia to Caudry | 784.62 mi (1,262.72 km) |
