| Clay to Cabestany | 4,671.56 mi (7,518.15 km) |
| Clay to Cabries | 4,758.38 mi (7,657.87 km) |
| Clay to Cachan | 4,469.72 mi (7,193.31 km) |
| Clay to Caen | 4,346.13 mi (6,994.42 km) |
| Clay to Cagnes-sur-Mer | 4,829.93 mi (7,773.02 km) |
| Clay to Cahors | 4,551.65 mi (7,325.18 km) |
| Clay to Calais | 4,393.33 mi (7,070.39 km) |
| Clay to Caluire-et-Cuire | 4,662.66 mi (7,503.82 km) |
| Clay to Cambrai | 4,469.61 mi (7,193.14 km) |
| Clay to Canet-en-Roussillon | 4,673.75 mi (7,521.67 km) |
| Clay to Cannes | 4,827.56 mi (7,769.20 km) |
| Clay to Canteleu | 4,398.16 mi (7,078.15 km) |
| Clay to Capbreton | 4,443.39 mi (7,150.95 km) |
| Clay to Carcassonne | 4,628.71 mi (7,449.20 km) |
| Clay to Carmaux | 4,595.40 mi (7,395.59 km) |
