| Mersch to Cartagena | 910.03 mi (1,464.54 km) |
| Mersch to Cartama | 1,048.04 mi (1,686.65 km) |
| Mersch to Cartaya | 1,084.11 mi (1,744.71 km) |
| Mersch to Caspe | 658.64 mi (1,059.98 km) |
| Mersch to Cassa de la Selva | 564.75 mi (908.88 km) |
| Mersch to Castalla | 839.65 mi (1,351.28 km) |
| Mersch to Castellbisbal | 605.04 mi (973.72 km) |
| Mersch to Castelldefels | 618.08 mi (994.71 km) |
| Mersch to Castello de Ampurias | 537.49 mi (865.01 km) |
| Mersch to Castellon de la Plana | 738.03 mi (1,187.74 km) |
| Mersch to Castilleja de la Cuesta | 1,045.98 mi (1,683.34 km) |
| Mersch to Catarroja | 782.59 mi (1,259.46 km) |
| Mersch to Catral | 870.46 mi (1,400.86 km) |
| Mersch to Caudete | 839.08 mi (1,350.36 km) |
| Mersch to Cehegin | 895.07 mi (1,440.48 km) |
