| Potters Bar to Cadiz | 1,089.72 mi (1,753.73 km) |
| Potters Bar to Calafell | 730.04 mi (1,174.88 km) |
| Potters Bar to Calahorra | 654.70 mi (1,053.64 km) |
| Potters Bar to Calasparra | 933.40 mi (1,502.17 km) |
| Potters Bar to Calatayud | 718.25 mi (1,155.92 km) |
| Potters Bar to Caldas de Montbuy | 704.21 mi (1,133.32 km) |
| Potters Bar to Caldas de Reyes | 742.37 mi (1,194.73 km) |
| Potters Bar to Calella | 709.36 mi (1,141.60 km) |
| Potters Bar to Callosa de Segura | 938.58 mi (1,510.50 km) |
| Potters Bar to Calpe | 901.94 mi (1,451.53 km) |
| Potters Bar to Calvia | 848.12 mi (1,364.91 km) |
| Potters Bar to Camas | 1,028.06 mi (1,654.51 km) |
| Potters Bar to Cambados | 752.60 mi (1,211.19 km) |
| Potters Bar to Cambre | 693.91 mi (1,116.73 km) |
| Potters Bar to Cambrils | 736.87 mi (1,185.88 km) |
