| Grottammare to Bougival | 693.29 mi (1,115.74 km) |
| Grottammare to Bouguenais | 807.34 mi (1,299.29 km) |
| Grottammare to Boulogne-Billancourt | 688.28 mi (1,107.68 km) |
| Grottammare to Boulogne-sur-Mer | 786.04 mi (1,265.00 km) |
| Grottammare to Bourg-de-Peage | 460.06 mi (740.40 km) |
| Grottammare to Bourg-en-Bresse | 479.14 mi (771.10 km) |
| Grottammare to Bourg-la-Reine | 683.39 mi (1,099.81 km) |
| Grottammare to Bourg-les-Valence | 465.85 mi (749.72 km) |
| Grottammare to Bourges | 626.55 mi (1,008.34 km) |
| Grottammare to Bourgoin-Jallieu | 460.97 mi (741.86 km) |
| Grottammare to Bressuire | 749.69 mi (1,206.51 km) |
| Grottammare to Brest | 958.25 mi (1,542.16 km) |
| Grottammare to Bretigny-sur-Orge | 677.75 mi (1,090.74 km) |
| Grottammare to Breuillet | 681.48 mi (1,096.73 km) |
| Grottammare to Briancon | 382.91 mi (616.24 km) |
