| Castellammare del Golfo to Borgosatollo | 532.33 mi (856.71 km) |
| Castellammare del Golfo to Borgosesia | 581.70 mi (936.16 km) |
| Castellammare del Golfo to Boscoreale | 207.77 mi (334.37 km) |
| Castellammare del Golfo to Boscotrecase | 208.45 mi (335.46 km) |
| Castellammare del Golfo to Botticino Sera | 536.23 mi (862.97 km) |
| Castellammare del Golfo to Bovalino Marina | 178.90 mi (287.90 km) |
| Castellammare del Golfo to Boves | 516.19 mi (830.73 km) |
| Castellammare del Golfo to Boville Ernica | 252.29 mi (406.02 km) |
| Castellammare del Golfo to Bovisio Masciago | 558.34 mi (898.56 km) |
| Castellammare del Golfo to Bovolone | 507.16 mi (816.19 km) |
| Castellammare del Golfo to Bra | 529.52 mi (852.18 km) |
| Castellammare del Golfo to Bracciano | 283.86 mi (456.83 km) |
| Castellammare del Golfo to Brandizzo | 558.24 mi (898.40 km) |
| Castellammare del Golfo to Breganze | 534.47 mi (860.14 km) |
| Castellammare del Golfo to Brembate | 550.54 mi (886.01 km) |
