| Ferentino to Borgosatollo | 302.22 mi (486.38 km) |
| Ferentino to Borgosesia | 373.51 mi (601.11 km) |
| Ferentino to Boscoreale | 90.10 mi (145.00 km) |
| Ferentino to Boscotrecase | 88.68 mi (142.71 km) |
| Ferentino to Botticino Sera | 305.78 mi (492.11 km) |
| Ferentino to Bovalino Marina | 288.90 mi (464.94 km) |
| Ferentino to Boves | 341.14 mi (549.02 km) |
| Ferentino to Boville Ernica | 11.42 mi (18.38 km) |
| Ferentino to Bovisio Masciago | 340.30 mi (547.66 km) |
| Ferentino to Bovolone | 268.30 mi (431.78 km) |
| Ferentino to Bra | 342.56 mi (551.30 km) |
| Ferentino to Bracciano | 61.96 mi (99.71 km) |
| Ferentino to Brandizzo | 363.16 mi (584.46 km) |
| Ferentino to Breganze | 289.97 mi (466.66 km) |
| Ferentino to Brembate | 327.73 mi (527.42 km) |
