| Idanha-a-Nova to Carpentras | 691.66 mi (1,113.12 km) |
| Idanha-a-Nova to Carquefou | 584.85 mi (941.22 km) |
| Idanha-a-Nova to Carqueiranne | 721.78 mi (1,161.59 km) |
| Idanha-a-Nova to Carrieres-sous-Poissy | 772.48 mi (1,243.18 km) |
| Idanha-a-Nova to Carrieres-sur-Seine | 777.83 mi (1,251.80 km) |
| Idanha-a-Nova to Carros | 787.63 mi (1,267.57 km) |
| Idanha-a-Nova to Carvin | 881.47 mi (1,418.59 km) |
| Idanha-a-Nova to Castanet-Tolosan | 514.02 mi (827.24 km) |
| Idanha-a-Nova to Castelginest | 516.62 mi (831.42 km) |
| Idanha-a-Nova to Castelnau-le-Lez | 628.02 mi (1,010.70 km) |
| Idanha-a-Nova to Castelnaudary | 529.15 mi (851.58 km) |
| Idanha-a-Nova to Castelsarrasin | 514.06 mi (827.30 km) |
| Idanha-a-Nova to Castres | 550.59 mi (886.09 km) |
| Idanha-a-Nova to Caudebec-les-Elbeuf | 762.85 mi (1,227.68 km) |
| Idanha-a-Nova to Caudry | 874.36 mi (1,407.15 km) |
