| Royston to Cabestany | 661.70 mi (1,064.91 km) |
| Royston to Cabries | 644.93 mi (1,037.92 km) |
| Royston to Cachan | 247.57 mi (398.43 km) |
| Royston to Caen | 198.69 mi (319.76 km) |
| Royston to Cagnes-sur-Mer | 667.03 mi (1,073.48 km) |
| Royston to Cahors | 529.34 mi (851.88 km) |
| Royston to Calais | 110.82 mi (178.34 km) |
| Royston to Caluire-et-Cuire | 484.94 mi (780.43 km) |
| Royston to Cambrai | 191.40 mi (308.02 km) |
| Royston to Canet-en-Roussillon | 660.64 mi (1,063.20 km) |
| Royston to Cannes | 670.92 mi (1,079.75 km) |
| Royston to Canteleu | 185.21 mi (298.07 km) |
| Royston to Capbreton | 584.39 mi (940.49 km) |
| Royston to Carcassonne | 620.39 mi (998.42 km) |
| Royston to Carmaux | 561.62 mi (903.83 km) |
