| Bad Neuenahr-Ahrweiler to Cartagena | 979.12 mi (1,575.73 km) |
| Bad Neuenahr-Ahrweiler to Cartama | 1,118.77 mi (1,800.49 km) |
| Bad Neuenahr-Ahrweiler to Cartaya | 1,154.89 mi (1,858.62 km) |
| Bad Neuenahr-Ahrweiler to Caspe | 728.60 mi (1,172.57 km) |
| Bad Neuenahr-Ahrweiler to Cassa de la Selva | 631.16 mi (1,015.76 km) |
| Bad Neuenahr-Ahrweiler to Castalla | 908.90 mi (1,462.73 km) |
| Bad Neuenahr-Ahrweiler to Castellbisbal | 672.77 mi (1,082.72 km) |
| Bad Neuenahr-Ahrweiler to Castelldefels | 685.68 mi (1,103.50 km) |
| Bad Neuenahr-Ahrweiler to Castello de Ampurias | 603.78 mi (971.68 km) |
| Bad Neuenahr-Ahrweiler to Castellon de la Plana | 807.36 mi (1,299.32 km) |
| Bad Neuenahr-Ahrweiler to Castilleja de la Cuesta | 1,116.88 mi (1,797.44 km) |
| Bad Neuenahr-Ahrweiler to Catarroja | 851.98 mi (1,371.12 km) |
| Bad Neuenahr-Ahrweiler to Catral | 939.63 mi (1,512.19 km) |
| Bad Neuenahr-Ahrweiler to Caudete | 908.64 mi (1,462.31 km) |
| Bad Neuenahr-Ahrweiler to Cehegin | 964.97 mi (1,552.97 km) |
