| Siano to Cartagena | 866.69 mi (1,394.81 km) |
| Siano to Cartama | 1,076.40 mi (1,732.30 km) |
| Siano to Cartaya | 1,193.87 mi (1,921.35 km) |
| Siano to Caspe | 767.43 mi (1,235.06 km) |
| Siano to Cassa de la Selva | 617.20 mi (993.29 km) |
| Siano to Castalla | 829.78 mi (1,335.41 km) |
| Siano to Castellbisbal | 662.51 mi (1,066.21 km) |
| Siano to Castelldefels | 662.98 mi (1,066.97 km) |
| Siano to Castello de Ampurias | 608.87 mi (979.88 km) |
| Siano to Castellon de la Plana | 776.15 mi (1,249.09 km) |
| Siano to Castilleja de la Cuesta | 1,134.36 mi (1,825.58 km) |
| Siano to Catarroja | 802.78 mi (1,291.95 km) |
| Siano to Catral | 845.28 mi (1,360.35 km) |
| Siano to Caudete | 844.37 mi (1,358.88 km) |
| Siano to Cehegin | 898.24 mi (1,445.58 km) |
