| Boulogne-Billancourt to Chitila | 1,159.31 mi (1,865.74 km) |
| Boulogne-Billancourt to Cisnadie | 1,045.65 mi (1,682.81 km) |
| Boulogne-Billancourt to Cluj-Napoca | 997.40 mi (1,605.15 km) |
| Boulogne-Billancourt to Codlea | 1,104.74 mi (1,777.91 km) |
| Boulogne-Billancourt to Comanesti | 1,134.45 mi (1,825.72 km) |
| Boulogne-Billancourt to Comarnic | 1,124.18 mi (1,809.18 km) |
| Boulogne-Billancourt to Constanta | 1,288.84 mi (2,074.18 km) |
| Boulogne-Billancourt to Corabia | 1,113.94 mi (1,792.71 km) |
| Boulogne-Billancourt to Costesti | 1,105.10 mi (1,778.48 km) |
| Boulogne-Billancourt to Covasna | 1,134.94 mi (1,826.51 km) |
| Boulogne-Billancourt to Craiova | 1,066.57 mi (1,716.48 km) |
| Boulogne-Billancourt to Cristuru Secuiesc | 1,072.98 mi (1,726.79 km) |
| Boulogne-Billancourt to Cugir | 1,006.88 mi (1,620.42 km) |
| Boulogne-Billancourt to Cumpana | 1,286.83 mi (2,070.96 km) |
| Boulogne-Billancourt to Curtea de Arges | 1,083.65 mi (1,743.96 km) |
