| Harsum to Cartagena | 1,139.50 mi (1,833.85 km) |
| Harsum to Cartama | 1,284.56 mi (2,067.30 km) |
| Harsum to Cartaya | 1,322.73 mi (2,128.73 km) |
| Harsum to Caspe | 891.90 mi (1,435.37 km) |
| Harsum to Cassa de la Selva | 786.07 mi (1,265.06 km) |
| Harsum to Castalla | 1,069.85 mi (1,721.75 km) |
| Harsum to Castellbisbal | 830.48 mi (1,336.53 km) |
| Harsum to Castelldefels | 843.02 mi (1,356.71 km) |
| Harsum to Castello de Ampurias | 758.59 mi (1,220.84 km) |
| Harsum to Castellon de la Plana | 968.72 mi (1,559.00 km) |
| Harsum to Castilleja de la Cuesta | 1,284.28 mi (2,066.84 km) |
| Harsum to Catarroja | 1,013.41 mi (1,630.92 km) |
| Harsum to Catral | 1,100.32 mi (1,770.79 km) |
| Harsum to Caudete | 1,070.48 mi (1,722.78 km) |
| Harsum to Cehegin | 1,127.77 mi (1,814.97 km) |
