| Gravelines to Borgosesia | 460.13 mi (740.51 km) |
| Gravelines to Boscoreale | 920.44 mi (1,481.31 km) |
| Gravelines to Boscotrecase | 919.00 mi (1,478.99 km) |
| Gravelines to Botticino Sera | 529.48 mi (852.12 km) |
| Gravelines to Bovalino Marina | 1,120.33 mi (1,803.00 km) |
| Gravelines to Boves | 524.05 mi (843.38 km) |
| Gravelines to Boville Ernica | 840.02 mi (1,351.89 km) |
| Gravelines to Bovisio Masciago | 491.31 mi (790.69 km) |
| Gravelines to Bovolone | 573.39 mi (922.78 km) |
| Gravelines to Bra | 508.64 mi (818.58 km) |
| Gravelines to Bracciano | 776.57 mi (1,249.76 km) |
| Gravelines to Brandizzo | 479.90 mi (772.33 km) |
| Gravelines to Breganze | 566.08 mi (911.02 km) |
| Gravelines to Brembate | 504.41 mi (811.77 km) |
| Gravelines to Brescia | 528.78 mi (850.98 km) |
