| Royston to Cehegin | 967.99 mi (1,557.83 km) |
| Royston to Cervello | 741.78 mi (1,193.78 km) |
| Royston to Cervera | 719.84 mi (1,158.48 km) |
| Royston to Ceuti | 967.00 mi (1,556.24 km) |
| Royston to Cheste | 868.90 mi (1,398.36 km) |
| Royston to Chiclana de la Frontera | 1,120.78 mi (1,803.72 km) |
| Royston to Chipiona | 1,103.37 mi (1,775.70 km) |
| Royston to Chiva | 869.54 mi (1,399.39 km) |
| Royston to Churriana de la Vega | 1,044.33 mi (1,680.68 km) |
| Royston to Ciempozuelos | 838.99 mi (1,350.23 km) |
| Royston to Cieza | 956.42 mi (1,539.21 km) |
| Royston to Cisterniga | 753.22 mi (1,212.20 km) |
| Royston to Ciudad de Melilla | 1,167.28 mi (1,878.55 km) |
| Royston to Ciudad Real | 921.78 mi (1,483.45 km) |
| Royston to Ciudad-Rodrigo | 849.24 mi (1,366.72 km) |
