| Belfast to Bois-Colombes | 525.53 mi (845.76 km) |
| Belfast to Bois-d'Arcy | 525.23 mi (845.28 km) |
| Belfast to Bois-Guillaume | 463.49 mi (745.91 km) |
| Belfast to Boissy-Saint-Leger | 541.41 mi (871.31 km) |
| Belfast to Bolbec | 440.53 mi (708.97 km) |
| Belfast to Bollene | 857.14 mi (1,379.43 km) |
| Belfast to Bondoufle | 545.23 mi (877.46 km) |
| Belfast to Bondues | 463.63 mi (746.15 km) |
| Belfast to Bondy | 532.47 mi (856.93 km) |
| Belfast to Bonneuil-sur-Marne | 539.49 mi (868.22 km) |
| Belfast to Bonneville | 799.02 mi (1,285.90 km) |
| Belfast to Bordeaux | 714.70 mi (1,150.19 km) |
| Belfast to Borgo | 1,083.85 mi (1,744.28 km) |
| Belfast to Bouc-Bel-Air | 923.13 mi (1,485.64 km) |
| Belfast to Boucau | 790.66 mi (1,272.44 km) |
