| Formia to Cabestany | 556.53 mi (895.65 km) |
| Formia to Cabries | 446.37 mi (718.36 km) |
| Formia to Cachan | 756.14 mi (1,216.90 km) |
| Formia to Caen | 870.69 mi (1,401.25 km) |
| Formia to Cagnes-sur-Mer | 368.80 mi (593.52 km) |
| Formia to Cahors | 653.92 mi (1,052.39 km) |
| Formia to Calais | 872.37 mi (1,403.95 km) |
| Formia to Caluire-et-Cuire | 538.82 mi (867.15 km) |
| Formia to Cambrai | 792.02 mi (1,274.63 km) |
| Formia to Canet-en-Roussillon | 553.48 mi (890.74 km) |
| Formia to Cannes | 371.90 mi (598.51 km) |
| Formia to Canteleu | 830.35 mi (1,336.32 km) |
| Formia to Capbreton | 783.35 mi (1,260.68 km) |
| Formia to Carcassonne | 591.26 mi (951.55 km) |
| Formia to Carmaux | 612.54 mi (985.78 km) |
