| Boulogne-Billancourt to Busto Garolfo | 385.72 mi (620.75 km) |
| Boulogne-Billancourt to Cabras | 688.51 mi (1,108.04 km) |
| Boulogne-Billancourt to Cadelbosco di Sopra | 484.66 mi (779.98 km) |
| Boulogne-Billancourt to Cadoneghe | 511.52 mi (823.21 km) |
| Boulogne-Billancourt to Cagli | 616.53 mi (992.21 km) |
| Boulogne-Billancourt to Cagliari | 745.66 mi (1,200.02 km) |
| Boulogne-Billancourt to Cairo Montenotte | 418.89 mi (674.14 km) |
| Boulogne-Billancourt to Caivano | 801.50 mi (1,289.89 km) |
| Boulogne-Billancourt to Calcinaia | 534.97 mi (860.95 km) |
| Boulogne-Billancourt to Calcinato | 449.06 mi (722.69 km) |
| Boulogne-Billancourt to Calderara di Reno | 518.96 mi (835.19 km) |
| Boulogne-Billancourt to Caldogno | 487.96 mi (785.29 km) |
| Boulogne-Billancourt to Calenzano | 546.23 mi (879.08 km) |
| Boulogne-Billancourt to Calolziocorte | 396.58 mi (638.24 km) |
| Boulogne-Billancourt to Caltagirone | 1,010.32 mi (1,625.96 km) |
