| Conwy to Carmona | 1,096.00 mi (1,763.85 km) |
| Conwy to Cartagena | 1,091.92 mi (1,757.28 km) |
| Conwy to Cartama | 1,145.43 mi (1,843.39 km) |
| Conwy to Cartaya | 1,116.68 mi (1,797.12 km) |
| Conwy to Caspe | 850.86 mi (1,369.33 km) |
| Conwy to Cassa de la Selva | 845.86 mi (1,361.28 km) |
| Conwy to Castalla | 1,025.55 mi (1,650.46 km) |
| Conwy to Castellbisbal | 858.96 mi (1,382.36 km) |
| Conwy to Castelldefels | 871.93 mi (1,403.24 km) |
| Conwy to Castello de Ampurias | 825.35 mi (1,328.27 km) |
| Conwy to Castellon de la Plana | 935.88 mi (1,506.15 km) |
| Conwy to Castilleja de la Cuesta | 1,103.50 mi (1,775.91 km) |
| Conwy to Catarroja | 972.35 mi (1,564.85 km) |
| Conwy to Catral | 1,054.63 mi (1,697.26 km) |
| Conwy to Caudete | 1,016.06 mi (1,635.20 km) |
