| Boulogne-Billancourt to Cassino | 757.26 mi (1,218.69 km) |
| Boulogne-Billancourt to Castagneto Carducci | 560.05 mi (901.31 km) |
| Boulogne-Billancourt to Castano Primo | 381.09 mi (613.31 km) |
| Boulogne-Billancourt to Castel Bolognese | 550.33 mi (885.68 km) |
| Boulogne-Billancourt to Castel Gandolfo | 703.04 mi (1,131.43 km) |
| Boulogne-Billancourt to Castel Goffredo | 457.76 mi (736.70 km) |
| Boulogne-Billancourt to Castel Maggiore | 522.86 mi (841.46 km) |
| Boulogne-Billancourt to Castel Mella | 436.85 mi (703.04 km) |
| Boulogne-Billancourt to Castel San Giorgio | 824.22 mi (1,326.45 km) |
| Boulogne-Billancourt to Castel San Giovanni | 428.07 mi (688.91 km) |
| Boulogne-Billancourt to Castel San Pietro Terme | 538.35 mi (866.40 km) |
| Boulogne-Billancourt to Castel Volturno | 782.83 mi (1,259.85 km) |
| Boulogne-Billancourt to Castelbuono | 957.84 mi (1,541.49 km) |
| Boulogne-Billancourt to Casteldaccia | 933.93 mi (1,503.01 km) |
| Boulogne-Billancourt to Castelfidardo | 655.09 mi (1,054.26 km) |
