| Blackrock to Bougival | 473.05 mi (761.30 km) |
| Blackrock to Bouguenais | 468.36 mi (753.75 km) |
| Blackrock to Boulogne-Billancourt | 477.82 mi (768.97 km) |
| Blackrock to Boulogne-sur-Mer | 375.83 mi (604.85 km) |
| Blackrock to Bourg-de-Peage | 761.94 mi (1,226.23 km) |
| Blackrock to Bourg-en-Bresse | 705.29 mi (1,135.05 km) |
| Blackrock to Bourg-la-Reine | 482.91 mi (777.17 km) |
| Blackrock to Bourg-les-Valence | 762.35 mi (1,226.88 km) |
| Blackrock to Bourges | 572.24 mi (920.93 km) |
| Blackrock to Bourgoin-Jallieu | 739.11 mi (1,189.48 km) |
| Blackrock to Bressuire | 512.43 mi (824.67 km) |
| Blackrock to Brest | 347.22 mi (558.80 km) |
| Blackrock to Bretigny-sur-Orge | 490.68 mi (789.68 km) |
| Blackrock to Breuillet | 488.53 mi (786.22 km) |
| Blackrock to Briancon | 818.21 mi (1,316.79 km) |
