| Idar-Oberstein to Coin | 1,084.05 mi (1,744.61 km) |
| Idar-Oberstein to Colindres | 671.00 mi (1,079.87 km) |
| Idar-Oberstein to Collado-Villalba | 833.34 mi (1,341.13 km) |
| Idar-Oberstein to Colmenar Viejo | 824.25 mi (1,326.50 km) |
| Idar-Oberstein to Colmenarejo | 837.60 mi (1,347.99 km) |
| Idar-Oberstein to Conil de la Frontera | 1,145.76 mi (1,843.92 km) |
| Idar-Oberstein to Consuegra | 887.00 mi (1,427.49 km) |
| Idar-Oberstein to Corbera de Llobregat | 629.04 mi (1,012.35 km) |
| Idar-Oberstein to Cordoba | 1,012.88 mi (1,630.07 km) |
| Idar-Oberstein to Coria del Rio | 1,085.57 mi (1,747.05 km) |
| Idar-Oberstein to Crevillente | 887.77 mi (1,428.72 km) |
| Idar-Oberstein to Cuarte de Huerva | 687.15 mi (1,105.85 km) |
| Idar-Oberstein to Cubellas | 647.40 mi (1,041.89 km) |
| Idar-Oberstein to Cuellar | 802.04 mi (1,290.76 km) |
| Idar-Oberstein to Cuenca | 810.18 mi (1,303.85 km) |
