| Ferentino to Bougival | 732.15 mi (1,178.28 km) |
| Ferentino to Bouguenais | 824.26 mi (1,326.52 km) |
| Ferentino to Boulogne-Billancourt | 727.26 mi (1,170.41 km) |
| Ferentino to Boulogne-sur-Mer | 834.66 mi (1,343.26 km) |
| Ferentino to Bourg-de-Peage | 472.32 mi (760.12 km) |
| Ferentino to Bourg-en-Bresse | 506.38 mi (814.94 km) |
| Ferentino to Bourg-la-Reine | 722.22 mi (1,162.31 km) |
| Ferentino to Bourg-les-Valence | 476.39 mi (766.67 km) |
| Ferentino to Bourges | 652.11 mi (1,049.47 km) |
| Ferentino to Bourgoin-Jallieu | 481.11 mi (774.26 km) |
| Ferentino to Bressuire | 766.03 mi (1,232.81 km) |
| Ferentino to Brest | 979.04 mi (1,575.61 km) |
| Ferentino to Bretigny-sur-Orge | 715.35 mi (1,151.25 km) |
| Ferentino to Breuillet | 718.31 mi (1,156.01 km) |
| Ferentino to Briancon | 399.73 mi (643.30 km) |
