| Castle Rock to Brie-Comte-Robert | 4,914.62 mi (7,909.31 km) |
| Castle Rock to Brignais | 5,125.46 mi (8,248.63 km) |
| Castle Rock to Brignoles | 5,277.42 mi (8,493.18 km) |
| Castle Rock to Brive-la-Gaillarde | 5,028.50 mi (8,092.60 km) |
| Castle Rock to Bron | 5,128.33 mi (8,253.25 km) |
| Castle Rock to Bruay-sur-l'Escaut | 4,873.06 mi (7,842.44 km) |
| Castle Rock to Bruges | 4,958.37 mi (7,979.73 km) |
| Castle Rock to Brumath | 5,089.89 mi (8,191.38 km) |
| Castle Rock to Brunoy | 4,910.59 mi (7,902.83 km) |
| Castle Rock to Bruz | 4,784.26 mi (7,699.52 km) |
| Castle Rock to Bry-sur-Marne | 4,905.03 mi (7,893.89 km) |
| Castle Rock to Bully-les-Mines | 4,843.17 mi (7,794.32 km) |
| Castle Rock to Bures-sur-Yvette | 4,898.42 mi (7,883.25 km) |
| Castle Rock to Bussy-Saint-Georges | 4,911.23 mi (7,903.86 km) |
| Castle Rock to Buxerolles | 4,922.04 mi (7,921.26 km) |
