| Rockville to Ayamonte | 3,695.04 mi (5,946.60 km) |
| Rockville to Azcoitia | 3,771.97 mi (6,070.39 km) |
| Rockville to Azpeitia | 3,773.99 mi (6,073.65 km) |
| Rockville to Azuqueca de Henares | 3,799.83 mi (6,115.23 km) |
| Rockville to Badajoz | 3,667.88 mi (5,902.89 km) |
| Rockville to Badalona | 4,033.28 mi (6,490.94 km) |
| Rockville to Baena | 3,835.50 mi (6,172.64 km) |
| Rockville to Baeza | 3,866.17 mi (6,222.00 km) |
| Rockville to Bailen | 3,848.46 mi (6,193.50 km) |
| Rockville to Balaguer | 3,956.17 mi (6,366.84 km) |
| Rockville to Banolas | 4,036.91 mi (6,496.78 km) |
| Rockville to Baranain | 3,812.25 mi (6,135.22 km) |
| Rockville to Barbadanes | 3,531.90 mi (5,684.05 km) |
| Rockville to Barbastro | 3,917.34 mi (6,304.35 km) |
| Rockville to Barcelona | 4,032.22 mi (6,489.24 km) |
