| Formia to Cankova | 395.14 mi (635.92 km) |
| Formia to Celje | 353.06 mi (568.19 km) |
| Formia to Cerklje na Gorenjskem | 346.94 mi (558.35 km) |
| Formia to Cerknica | 315.16 mi (507.21 km) |
| Formia to Cerkno | 336.42 mi (541.42 km) |
| Formia to Cerkvenjak | 383.97 mi (617.94 km) |
| Formia to Cirkulane | 370.22 mi (595.82 km) |
| Formia to Crensovci | 390.13 mi (627.86 km) |
| Formia to Crna na Koroskem | 364.68 mi (586.90 km) |
| Formia to Crnomelj | 307.68 mi (495.16 km) |
| Formia to Destrnik | 378.20 mi (608.65 km) |
| Formia to Divaca | 305.58 mi (491.79 km) |
| Formia to Dobje | 347.99 mi (560.04 km) |
| Formia to Dobrna | 359.49 mi (578.54 km) |
| Formia to Dobrova | 333.11 mi (536.09 km) |
