| Boadilla del Monte to Belvedere Marittimo | 1,043.97 mi (1,680.11 km) |
| Boadilla del Monte to Benevento | 975.75 mi (1,570.32 km) |
| Boadilla del Monte to Bergamo | 773.93 mi (1,245.53 km) |
| Boadilla del Monte to Bernalda | 1,079.08 mi (1,736.60 km) |
| Boadilla del Monte to Bertinoro | 856.62 mi (1,378.59 km) |
| Boadilla del Monte to Besana in Brianza | 757.00 mi (1,218.27 km) |
| Boadilla del Monte to Besozzo | 734.55 mi (1,182.14 km) |
| Boadilla del Monte to Biancavilla | 1,021.78 mi (1,644.39 km) |
| Boadilla del Monte to Biassono | 754.39 mi (1,214.07 km) |
| Boadilla del Monte to Bibbiano | 785.88 mi (1,264.75 km) |
| Boadilla del Monte to Bibbiena | 835.11 mi (1,343.98 km) |
| Boadilla del Monte to Biella | 699.92 mi (1,126.41 km) |
| Boadilla del Monte to Bisceglie | 1,064.68 mi (1,713.43 km) |
| Boadilla del Monte to Bisignano | 1,067.00 mi (1,717.17 km) |
| Boadilla del Monte to Bitetto | 1,078.41 mi (1,735.53 km) |
