| Rockville to Belvedere Marittimo | 4,715.94 mi (7,589.57 km) |
| Rockville to Benevento | 4,611.13 mi (7,420.89 km) |
| Rockville to Bergamo | 4,231.02 mi (6,809.18 km) |
| Rockville to Bernalda | 4,721.47 mi (7,598.47 km) |
| Rockville to Bertinoro | 4,388.08 mi (7,061.94 km) |
| Rockville to Besana in Brianza | 4,214.35 mi (6,782.34 km) |
| Rockville to Besozzo | 4,183.20 mi (6,732.21 km) |
| Rockville to Biancavilla | 4,746.00 mi (7,637.95 km) |
| Rockville to Biassono | 4,215.78 mi (6,784.64 km) |
| Rockville to Bibbiano | 4,298.88 mi (6,918.38 km) |
| Rockville to Bibbiena | 4,389.91 mi (7,064.88 km) |
| Rockville to Biella | 4,166.38 mi (6,705.13 km) |
| Rockville to Bisceglie | 4,682.29 mi (7,535.42 km) |
| Rockville to Bisignano | 4,738.25 mi (7,625.47 km) |
| Rockville to Bitetto | 4,700.89 mi (7,565.35 km) |
