| Gaithersburg to Bollullos par del Condado | 3,735.59 mi (6,011.86 km) |
| Gaithersburg to Bormujos | 3,757.99 mi (6,047.89 km) |
| Gaithersburg to Brenes | 3,762.45 mi (6,055.08 km) |
| Gaithersburg to Brunete | 3,770.97 mi (6,068.79 km) |
| Gaithersburg to Bueu | 3,490.81 mi (5,617.92 km) |
| Gaithersburg to Bullas | 3,953.12 mi (6,361.92 km) |
| Gaithersburg to Bunol | 3,953.38 mi (6,362.35 km) |
| Gaithersburg to Burela de Cabo | 3,523.73 mi (5,670.90 km) |
| Gaithersburg to Burgos | 3,730.93 mi (6,004.35 km) |
| Gaithersburg to Burjasot | 3,969.07 mi (6,387.61 km) |
| Gaithersburg to Burriana | 3,972.31 mi (6,392.82 km) |
| Gaithersburg to Cabanaquinta | 3,622.53 mi (5,829.90 km) |
| Gaithersburg to Cabanillas del Campo | 3,800.44 mi (6,116.22 km) |
| Gaithersburg to Cabra | 3,835.74 mi (6,173.02 km) |
| Gaithersburg to Caceres | 3,682.11 mi (5,925.79 km) |
