| Idar-Oberstein to Butzbach | 78.04 mi (125.59 km) |
| Idar-Oberstein to Buxtehude | 279.59 mi (449.96 km) |
| Idar-Oberstein to Cadolzburg | 160.20 mi (257.82 km) |
| Idar-Oberstein to Calbe | 246.71 mi (397.04 km) |
| Idar-Oberstein to Calw | 93.98 mi (151.24 km) |
| Idar-Oberstein to Castrop-Rauxel | 127.04 mi (204.44 km) |
| Idar-Oberstein to Celle | 234.35 mi (377.15 km) |
| Idar-Oberstein to Cham | 242.03 mi (389.51 km) |
| Idar-Oberstein to Chemnitz | 259.24 mi (417.20 km) |
| Idar-Oberstein to Clausthal-Zellerfeld | 195.87 mi (315.22 km) |
| Idar-Oberstein to Cloppenburg | 219.18 mi (352.73 km) |
| Idar-Oberstein to Coburg | 166.76 mi (268.37 km) |
| Idar-Oberstein to Coesfeld | 154.80 mi (249.13 km) |
| Idar-Oberstein to Cologne | 86.12 mi (138.59 km) |
| Idar-Oberstein to Coswig | 292.87 mi (471.33 km) |
