| Potters Bar to Carmona | 1,018.49 mi (1,639.09 km) |
| Potters Bar to Cartagena | 974.85 mi (1,568.87 km) |
| Potters Bar to Cartama | 1,058.14 mi (1,702.91 km) |
| Potters Bar to Cartaya | 1,052.31 mi (1,693.52 km) |
| Potters Bar to Caspe | 723.08 mi (1,163.68 km) |
| Potters Bar to Cassa de la Selva | 692.81 mi (1,114.97 km) |
| Potters Bar to Castalla | 905.52 mi (1,457.29 km) |
| Potters Bar to Castellbisbal | 713.58 mi (1,148.40 km) |
| Potters Bar to Castelldefels | 727.02 mi (1,170.03 km) |
| Potters Bar to Castello de Ampurias | 669.88 mi (1,078.07 km) |
| Potters Bar to Castellon de la Plana | 809.45 mi (1,302.69 km) |
| Potters Bar to Castilleja de la Cuesta | 1,029.54 mi (1,656.89 km) |
| Potters Bar to Catarroja | 849.58 mi (1,367.27 km) |
| Potters Bar to Catral | 935.91 mi (1,506.20 km) |
| Potters Bar to Caudete | 898.61 mi (1,446.17 km) |
