| Idar-Oberstein to Cay | 1,394.99 mi (2,245.02 km) |
| Idar-Oberstein to Caybasi | 1,552.25 mi (2,498.11 km) |
| Idar-Oberstein to Caycuma | 1,319.28 mi (2,123.17 km) |
| Idar-Oberstein to Cayeli | 1,709.92 mi (2,751.86 km) |
| Idar-Oberstein to Cayiralan | 1,557.31 mi (2,506.25 km) |
| Idar-Oberstein to Cayirhan | 1,356.19 mi (2,182.58 km) |
| Idar-Oberstein to Cayirli | 1,727.86 mi (2,780.72 km) |
| Idar-Oberstein to Cayirova | 1,229.28 mi (1,978.33 km) |
| Idar-Oberstein to Caykara | 1,701.14 mi (2,737.71 km) |
| Idar-Oberstein to Cekerek | 1,519.61 mi (2,445.58 km) |
| Idar-Oberstein to Cekme | 1,212.34 mi (1,951.08 km) |
| Idar-Oberstein to Celtik | 1,406.97 mi (2,264.30 km) |
| Idar-Oberstein to Cerkes | 1,378.24 mi (2,218.06 km) |
| Idar-Oberstein to Cerkezkoy | 1,153.19 mi (1,855.88 km) |
| Idar-Oberstein to Cermik | 1,769.71 mi (2,848.07 km) |
