| Grays to Carmona | 1,010.70 mi (1,626.57 km) |
| Grays to Cartagena | 960.80 mi (1,546.26 km) |
| Grays to Cartama | 1,048.73 mi (1,687.76 km) |
| Grays to Cartaya | 1,046.48 mi (1,684.15 km) |
| Grays to Caspe | 707.84 mi (1,139.16 km) |
| Grays to Cassa de la Selva | 673.09 mi (1,083.23 km) |
| Grays to Castalla | 891.12 mi (1,434.12 km) |
| Grays to Castellbisbal | 695.23 mi (1,118.86 km) |
| Grays to Castelldefels | 708.72 mi (1,140.57 km) |
| Grays to Castello de Ampurias | 649.76 mi (1,045.69 km) |
| Grays to Castellon de la Plana | 794.20 mi (1,278.15 km) |
| Grays to Castilleja de la Cuesta | 1,022.29 mi (1,645.22 km) |
| Grays to Catarroja | 834.86 mi (1,343.57 km) |
| Grays to Catral | 921.67 mi (1,483.28 km) |
| Grays to Caudete | 884.66 mi (1,423.73 km) |
