| Sondershausen to Coin | 1,272.51 mi (2,047.91 km) |
| Sondershausen to Colindres | 864.41 mi (1,391.13 km) |
| Sondershausen to Collado-Villalba | 1,025.63 mi (1,650.59 km) |
| Sondershausen to Colmenar Viejo | 1,016.32 mi (1,635.61 km) |
| Sondershausen to Colmenarejo | 1,029.82 mi (1,657.34 km) |
| Sondershausen to Conil de la Frontera | 1,335.84 mi (2,149.83 km) |
| Sondershausen to Consuegra | 1,077.38 mi (1,733.87 km) |
| Sondershausen to Corbera de Llobregat | 807.32 mi (1,299.26 km) |
| Sondershausen to Cordoba | 1,202.98 mi (1,936.01 km) |
| Sondershausen to Coria del Rio | 1,276.68 mi (2,054.62 km) |
| Sondershausen to Crevillente | 1,069.03 mi (1,720.45 km) |
| Sondershausen to Cuarte de Huerva | 876.02 mi (1,409.81 km) |
| Sondershausen to Cubellas | 826.28 mi (1,329.78 km) |
| Sondershausen to Cuellar | 995.15 mi (1,601.54 km) |
| Sondershausen to Cuenca | 998.85 mi (1,607.49 km) |
