| Gaithersburg to Brighton | 3,676.63 mi (5,916.97 km) |
| Gaithersburg to Brimington | 3,574.00 mi (5,751.79 km) |
| Gaithersburg to Brislington | 3,564.32 mi (5,736.21 km) |
| Gaithersburg to Bristol | 3,561.66 mi (5,731.94 km) |
| Gaithersburg to Brixham | 3,545.34 mi (5,705.68 km) |
| Gaithersburg to Brixton | 3,663.09 mi (5,895.18 km) |
| Gaithersburg to Broadstairs | 3,728.66 mi (6,000.70 km) |
| Gaithersburg to Broadstone | 3,601.13 mi (5,795.45 km) |
| Gaithersburg to Broadwater | 3,666.71 mi (5,900.99 km) |
| Gaithersburg to Brockworth | 3,571.86 mi (5,748.35 km) |
| Gaithersburg to Bromborough | 3,509.52 mi (5,648.03 km) |
| Gaithersburg to Bromley | 3,669.87 mi (5,906.08 km) |
| Gaithersburg to Bromsgrove | 3,565.74 mi (5,738.50 km) |
| Gaithersburg to Broughton Astley | 3,595.25 mi (5,786.00 km) |
| Gaithersburg to Broughty Ferry | 3,460.07 mi (5,568.45 km) |
