| Formia to Casamassima | 173.17 mi (278.70 km) |
| Formia to Casandrino | 40.22 mi (64.73 km) |
| Formia to Casapulla | 37.32 mi (60.07 km) |
| Formia to Casarano | 253.66 mi (408.23 km) |
| Formia to Casatenovo | 374.48 mi (602.67 km) |
| Formia to Casciana Terme | 218.62 mi (351.83 km) |
| Formia to Cascina | 228.67 mi (368.00 km) |
| Formia to Caselle Torinese | 403.99 mi (650.15 km) |
| Formia to Caserta | 39.75 mi (63.97 km) |
| Formia to Casier | 309.96 mi (498.83 km) |
| Formia to Casorate Primo | 362.94 mi (584.10 km) |
| Formia to Casoria | 43.68 mi (70.30 km) |
| Formia to Cassano al Ionio | 174.95 mi (281.56 km) |
| Formia to Cassano d'Adda | 359.43 mi (578.44 km) |
| Formia to Cassano delle Murge | 166.19 mi (267.45 km) |
