| Les Clayes-sous-Bois to Cosenza | 963.74 mi (1,550.99 km) |
| Les Clayes-sous-Bois to Cossato | 366.98 mi (590.59 km) |
| Les Clayes-sous-Bois to Costa Volpino | 432.28 mi (695.68 km) |
| Les Clayes-sous-Bois to Creazzo | 500.15 mi (804.92 km) |
| Les Clayes-sous-Bois to Crema | 433.41 mi (697.51 km) |
| Les Clayes-sous-Bois to Cremona | 456.69 mi (734.97 km) |
| Les Clayes-sous-Bois to Crevalcore | 517.71 mi (833.17 km) |
| Les Clayes-sous-Bois to Crispiano | 936.95 mi (1,507.88 km) |
| Les Clayes-sous-Bois to Crosia | 969.13 mi (1,559.66 km) |
| Les Clayes-sous-Bois to Crotone | 1,006.23 mi (1,619.37 km) |
| Les Clayes-sous-Bois to Cuneo | 404.52 mi (651.02 km) |
| Les Clayes-sous-Bois to Cuorgne | 356.48 mi (573.69 km) |
| Les Clayes-sous-Bois to Cusano Milanino | 406.38 mi (654.01 km) |
| Les Clayes-sous-Bois to Cutro | 1,003.88 mi (1,615.59 km) |
| Les Clayes-sous-Bois to Cutrofiano | 997.05 mi (1,604.60 km) |
