| Boulder to Brie-Comte-Robert | 4,895.27 mi (7,878.18 km) |
| Boulder to Brignais | 5,107.26 mi (8,219.34 km) |
| Boulder to Brignoles | 5,260.11 mi (8,465.33 km) |
| Boulder to Brive-la-Gaillarde | 5,011.87 mi (8,065.83 km) |
| Boulder to Bron | 5,110.03 mi (8,223.79 km) |
| Boulder to Bruay-sur-l'Escaut | 4,852.29 mi (7,809.01 km) |
| Boulder to Bruges | 4,942.74 mi (7,954.58 km) |
| Boulder to Brumath | 5,068.70 mi (8,157.28 km) |
| Boulder to Brunoy | 4,891.28 mi (7,871.75 km) |
| Boulder to Bruz | 4,766.88 mi (7,671.55 km) |
| Boulder to Bry-sur-Marne | 4,885.62 mi (7,862.65 km) |
| Boulder to Bully-les-Mines | 4,822.64 mi (7,761.29 km) |
| Boulder to Bures-sur-Yvette | 4,879.23 mi (7,852.37 km) |
| Boulder to Bussy-Saint-Georges | 4,891.75 mi (7,872.52 km) |
| Boulder to Buxerolles | 4,904.89 mi (7,893.67 km) |
