| Rhyl to Carmona | 1,100.27 mi (1,770.71 km) |
| Rhyl to Cartagena | 1,092.77 mi (1,758.64 km) |
| Rhyl to Cartama | 1,148.95 mi (1,849.05 km) |
| Rhyl to Cartaya | 1,121.98 mi (1,805.65 km) |
| Rhyl to Caspe | 850.40 mi (1,368.59 km) |
| Rhyl to Cassa de la Selva | 842.68 mi (1,356.16 km) |
| Rhyl to Castalla | 1,026.05 mi (1,651.27 km) |
| Rhyl to Castellbisbal | 856.67 mi (1,378.68 km) |
| Rhyl to Castelldefels | 869.71 mi (1,399.67 km) |
| Rhyl to Castello de Ampurias | 821.85 mi (1,322.64 km) |
| Rhyl to Castellon de la Plana | 935.66 mi (1,505.80 km) |
| Rhyl to Castilleja de la Cuesta | 1,108.05 mi (1,783.23 km) |
| Rhyl to Catarroja | 972.54 mi (1,565.15 km) |
| Rhyl to Catral | 1,055.28 mi (1,698.32 km) |
| Rhyl to Caudete | 1,016.80 mi (1,636.38 km) |
