| Idar-Oberstein to Cento | 391.03 mi (629.31 km) |
| Idar-Oberstein to Cepagatti | 601.48 mi (967.99 km) |
| Idar-Oberstein to Ceprano | 638.08 mi (1,026.89 km) |
| Idar-Oberstein to Cercola | 699.60 mi (1,125.90 km) |
| Idar-Oberstein to Cerea | 361.02 mi (581.00 km) |
| Idar-Oberstein to Cerese | 359.88 mi (579.18 km) |
| Idar-Oberstein to Cerignola | 715.53 mi (1,151.54 km) |
| Idar-Oberstein to Cermenate | 289.10 mi (465.26 km) |
| Idar-Oberstein to Cernusco sul Naviglio | 304.69 mi (490.35 km) |
| Idar-Oberstein to Cerreto Guidi | 444.04 mi (714.61 km) |
| Idar-Oberstein to Cerro Maggiore | 294.09 mi (473.29 km) |
| Idar-Oberstein to Certaldo | 460.99 mi (741.89 km) |
| Idar-Oberstein to Cerveteri | 580.17 mi (933.69 km) |
| Idar-Oberstein to Cervia | 445.23 mi (716.52 km) |
| Idar-Oberstein to Cervignano del Friuli | 387.57 mi (623.73 km) |
