| Witham to Carmona | 1,036.11 mi (1,667.46 km) |
| Witham to Cartagena | 984.13 mi (1,583.80 km) |
| Witham to Cartama | 1,073.76 mi (1,728.05 km) |
| Witham to Cartaya | 1,072.19 mi (1,725.52 km) |
| Witham to Caspe | 730.62 mi (1,175.83 km) |
| Witham to Cassa de la Selva | 692.64 mi (1,114.69 km) |
| Witham to Castalla | 914.29 mi (1,471.41 km) |
| Witham to Castellbisbal | 715.93 mi (1,152.18 km) |
| Witham to Castelldefels | 729.46 mi (1,173.95 km) |
| Witham to Castello de Ampurias | 668.94 mi (1,076.56 km) |
| Witham to Castellon de la Plana | 816.94 mi (1,314.74 km) |
| Witham to Castilleja de la Cuesta | 1,047.79 mi (1,686.26 km) |
| Witham to Catarroja | 857.87 mi (1,380.60 km) |
| Witham to Catral | 944.91 mi (1,520.68 km) |
| Witham to Caudete | 908.05 mi (1,461.37 km) |
