| Idar-Oberstein to Chojnow | 393.61 mi (633.46 km) |
| Idar-Oberstein to Chorzow | 517.83 mi (833.36 km) |
| Idar-Oberstein to Choszczno | 422.46 mi (679.88 km) |
| Idar-Oberstein to Chrzanow | 537.87 mi (865.62 km) |
| Idar-Oberstein to Ciechanow | 614.35 mi (988.70 km) |
| Idar-Oberstein to Ciechocinek | 541.05 mi (870.74 km) |
| Idar-Oberstein to Cieszyn | 505.09 mi (812.87 km) |
| Idar-Oberstein to Czarna Bialostocka | 728.31 mi (1,172.11 km) |
| Idar-Oberstein to Czarnkow | 455.91 mi (733.72 km) |
| Idar-Oberstein to Czechowice-Dziedzice | 521.01 mi (838.48 km) |
| Idar-Oberstein to Czeladz | 523.71 mi (842.83 km) |
| Idar-Oberstein to Czersk Pomorski | 535.33 mi (861.52 km) |
| Idar-Oberstein to Czestochowa | 526.25 mi (846.91 km) |
| Idar-Oberstein to Czluchow | 509.32 mi (819.66 km) |
| Idar-Oberstein to Dabrowa Gornicza | 528.29 mi (850.20 km) |
