| Formia to Carpentras | 475.76 mi (765.66 km) |
| Formia to Carquefou | 853.59 mi (1,373.72 km) |
| Formia to Carqueiranne | 406.17 mi (653.67 km) |
| Formia to Carrieres-sous-Poissy | 773.28 mi (1,244.48 km) |
| Formia to Carrieres-sur-Seine | 762.87 mi (1,227.72 km) |
| Formia to Carros | 369.95 mi (595.38 km) |
| Formia to Carvin | 816.37 mi (1,313.81 km) |
| Formia to Castanet-Tolosan | 636.98 mi (1,025.13 km) |
| Formia to Castelginest | 642.43 mi (1,033.89 km) |
| Formia to Castelnau-le-Lez | 521.26 mi (838.89 km) |
| Formia to Castelnaudary | 612.14 mi (985.14 km) |
| Formia to Castelsarrasin | 663.18 mi (1,067.28 km) |
| Formia to Castres | 601.10 mi (967.37 km) |
| Formia to Caudebec-les-Elbeuf | 823.67 mi (1,325.56 km) |
| Formia to Caudry | 784.10 mi (1,261.89 km) |
