| Rockville to Blumberg | 4,115.86 mi (6,623.84 km) |
| Rockville to Bobenheim-Roxheim | 4,056.61 mi (6,528.48 km) |
| Rockville to Bobingen | 4,196.79 mi (6,754.08 km) |
| Rockville to Boblingen | 4,110.05 mi (6,614.49 km) |
| Rockville to Bocholt | 3,923.81 mi (6,314.77 km) |
| Rockville to Bochum | 3,956.95 mi (6,368.09 km) |
| Rockville to Bockenem | 4,055.89 mi (6,527.33 km) |
| Rockville to Bockhorn | 3,936.19 mi (6,334.69 km) |
| Rockville to Bogen | 4,251.56 mi (6,842.23 km) |
| Rockville to Bohl-Iggelheim | 4,060.72 mi (6,535.09 km) |
| Rockville to Bohmte | 3,975.71 mi (6,398.28 km) |
| Rockville to Boizenburg | 4,039.09 mi (6,500.28 km) |
| Rockville to Bonen | 3,975.16 mi (6,397.40 km) |
| Rockville to Bonn | 3,972.97 mi (6,393.88 km) |
| Rockville to Bopfingen | 4,159.38 mi (6,693.87 km) |
