| Keystone to Cabestany | 4,717.94 mi (7,592.79 km) |
| Keystone to Cabries | 4,816.48 mi (7,751.37 km) |
| Keystone to Cachan | 4,563.19 mi (7,343.74 km) |
| Keystone to Caen | 4,437.92 mi (7,142.14 km) |
| Keystone to Cagnes-sur-Mer | 4,894.05 mi (7,876.22 km) |
| Keystone to Cahors | 4,608.59 mi (7,416.81 km) |
| Keystone to Calais | 4,503.27 mi (7,247.31 km) |
| Keystone to Caluire-et-Cuire | 4,737.67 mi (7,624.54 km) |
| Keystone to Cambrai | 4,575.77 mi (7,363.99 km) |
| Keystone to Canet-en-Roussillon | 4,720.47 mi (7,596.87 km) |
| Keystone to Cannes | 4,890.49 mi (7,870.49 km) |
| Keystone to Canteleu | 4,494.59 mi (7,233.34 km) |
| Keystone to Capbreton | 4,487.70 mi (7,222.26 km) |
| Keystone to Carcassonne | 4,677.87 mi (7,528.30 km) |
| Keystone to Carmaux | 4,650.75 mi (7,484.66 km) |
