| Boulder to Bastogne | 4,943.42 mi (7,955.66 km) |
| Boulder to Beauraing | 4,913.05 mi (7,906.79 km) |
| Boulder to Beernem | 4,812.91 mi (7,745.62 km) |
| Boulder to Beerse | 4,855.99 mi (7,814.97 km) |
| Boulder to Beersel | 4,862.08 mi (7,824.76 km) |
| Boulder to Begijnendijk | 4,866.59 mi (7,832.02 km) |
| Boulder to Beloeil | 4,852.34 mi (7,809.09 km) |
| Boulder to Berchem | 4,847.03 mi (7,800.55 km) |
| Boulder to Beringen | 4,880.23 mi (7,853.96 km) |
| Boulder to Berlaar | 4,857.74 mi (7,817.77 km) |
| Boulder to Berlare | 4,840.24 mi (7,789.62 km) |
| Boulder to Bernissart | 4,852.29 mi (7,809.01 km) |
| Boulder to Bertem | 4,868.51 mi (7,835.11 km) |
| Boulder to Bertrix | 4,934.53 mi (7,941.36 km) |
| Boulder to Beveren | 4,840.76 mi (7,790.44 km) |
