| Formia to Busto Arsizio | 383.62 mi (617.38 km) |
| Formia to Busto Garolfo | 379.15 mi (610.18 km) |
| Formia to Cabras | 282.09 mi (453.98 km) |
| Formia to Cadelbosco di Sopra | 285.79 mi (459.94 km) |
| Formia to Cadoneghe | 301.14 mi (484.63 km) |
| Formia to Cagli | 165.29 mi (266.00 km) |
| Formia to Cagliari | 276.18 mi (444.46 km) |
| Formia to Cairo Montenotte | 346.79 mi (558.10 km) |
| Formia to Caivano | 41.76 mi (67.21 km) |
| Formia to Calcinaia | 226.36 mi (364.29 km) |
| Formia to Calcinato | 331.20 mi (533.02 km) |
| Formia to Calderara di Reno | 257.12 mi (413.80 km) |
| Formia to Caldogno | 317.74 mi (511.36 km) |
| Formia to Calenzano | 218.64 mi (351.87 km) |
| Formia to Calolziocorte | 376.73 mi (606.29 km) |
