| Boulogne-Billancourt to Cogolin | 436.97 mi (703.24 km) |
| Boulogne-Billancourt to Colmar | 240.02 mi (386.27 km) |
| Boulogne-Billancourt to Colombes | 6.13 mi (9.86 km) |
| Boulogne-Billancourt to Colomiers | 363.33 mi (584.72 km) |
| Boulogne-Billancourt to Combs-la-Ville | 18.48 mi (29.74 km) |
| Boulogne-Billancourt to Comines | 137.39 mi (221.11 km) |
| Boulogne-Billancourt to Compiegne | 47.93 mi (77.13 km) |
| Boulogne-Billancourt to Concarneau | 290.40 mi (467.35 km) |
| Boulogne-Billancourt to Conde-sur-l'Escaut | 126.81 mi (204.08 km) |
| Boulogne-Billancourt to Conflans-Sainte-Honorine | 13.05 mi (21.00 km) |
| Boulogne-Billancourt to Corbas | 251.87 mi (405.35 km) |
| Boulogne-Billancourt to Corbeil-Essonnes | 18.83 mi (30.30 km) |
| Boulogne-Billancourt to Cormeilles-en-Parisis | 9.75 mi (15.69 km) |
| Boulogne-Billancourt to Cosne sur Loire | 103.38 mi (166.38 km) |
| Boulogne-Billancourt to Coudekerque-Branche | 151.47 mi (243.77 km) |
