| Idar-Oberstein to Cesa | 690.69 mi (1,111.56 km) |
| Idar-Oberstein to Cesano Maderno | 294.53 mi (474.01 km) |
| Idar-Oberstein to Cesena | 449.65 mi (723.64 km) |
| Idar-Oberstein to Cesenatico | 449.69 mi (723.70 km) |
| Idar-Oberstein to Cetraro | 822.34 mi (1,323.43 km) |
| Idar-Oberstein to Cherasco | 350.67 mi (564.35 km) |
| Idar-Oberstein to Chiampo | 341.71 mi (549.93 km) |
| Idar-Oberstein to Chiaravalle | 509.35 mi (819.72 km) |
| Idar-Oberstein to Chiari | 313.33 mi (504.26 km) |
| Idar-Oberstein to Chiavari | 384.66 mi (619.04 km) |
| Idar-Oberstein to Chieri | 325.44 mi (523.74 km) |
| Idar-Oberstein to Chieti | 605.05 mi (973.74 km) |
| Idar-Oberstein to Chioggia | 387.27 mi (623.25 km) |
| Idar-Oberstein to Chiusi | 512.43 mi (824.68 km) |
| Idar-Oberstein to Chivasso | 313.48 mi (504.49 km) |
