| Royan to Cabestany | 283.44 mi (456.15 km) |
| Royan to Cabries | 350.29 mi (563.74 km) |
| Royan to Cachan | 270.18 mi (434.82 km) |
| Royan to Caen | 247.76 mi (398.74 km) |
| Royan to Cagnes-sur-Mer | 424.61 mi (683.34 km) |
| Royan to Cahors | 145.95 mi (234.88 km) |
| Royan to Calais | 391.25 mi (629.65 km) |
| Royan to Caluire-et-Cuire | 284.38 mi (457.66 km) |
| Royan to Cambrai | 371.70 mi (598.20 km) |
| Royan to Canet-en-Roussillon | 284.42 mi (457.72 km) |
| Royan to Cannes | 421.23 mi (677.91 km) |
| Royan to Canteleu | 281.68 mi (453.32 km) |
| Royan to Capbreton | 138.22 mi (222.44 km) |
| Royan to Carcassonne | 236.26 mi (380.23 km) |
| Royan to Carmaux | 190.83 mi (307.11 km) |
