| Formia to Cesme | 702.74 mi (1,130.95 km) |
| Formia to Ceyhan | 1,221.14 mi (1,965.24 km) |
| Formia to Ceylanpinar | 1,444.71 mi (2,325.04 km) |
| Formia to Cicekdagi | 1,096.76 mi (1,765.07 km) |
| Formia to Cide | 1,000.84 mi (1,610.69 km) |
| Formia to Cifteler | 925.32 mi (1,489.17 km) |
| Formia to Ciftlik | 1,126.62 mi (1,813.12 km) |
| Formia to Ciftlikkoy | 819.45 mi (1,318.77 km) |
| Formia to Cihanbeyli | 1,036.20 mi (1,667.60 km) |
| Formia to Cildir | 1,527.07 mi (2,457.58 km) |
| Formia to Cilimli | 906.74 mi (1,459.26 km) |
| Formia to Cinar | 1,443.69 mi (2,323.40 km) |
| Formia to Cinarcik | 809.07 mi (1,302.08 km) |
| Formia to Cine | 809.93 mi (1,303.46 km) |
| Formia to Civril | 878.76 mi (1,414.23 km) |
