| Alfeld to Cartagena | 1,123.80 mi (1,808.59 km) |
| Alfeld to Cartama | 1,269.39 mi (2,042.89 km) |
| Alfeld to Cartaya | 1,308.22 mi (2,105.38 km) |
| Alfeld to Caspe | 876.45 mi (1,410.50 km) |
| Alfeld to Cassa de la Selva | 770.19 mi (1,239.50 km) |
| Alfeld to Castalla | 1,054.19 mi (1,696.56 km) |
| Alfeld to Castellbisbal | 814.68 mi (1,311.11 km) |
| Alfeld to Castelldefels | 827.21 mi (1,331.26 km) |
| Alfeld to Castello de Ampurias | 742.71 mi (1,195.27 km) |
| Alfeld to Castellon de la Plana | 953.10 mi (1,533.86 km) |
| Alfeld to Castilleja de la Cuesta | 1,269.52 mi (2,043.10 km) |
| Alfeld to Catarroja | 997.79 mi (1,605.78 km) |
| Alfeld to Catral | 1,084.64 mi (1,745.57 km) |
| Alfeld to Caudete | 1,054.89 mi (1,697.68 km) |
| Alfeld to Cehegin | 1,112.25 mi (1,789.99 km) |
