| Madrid to Bitonto | 1,065.48 mi (1,714.72 km) |
| Madrid to Bitritto | 1,073.61 mi (1,727.82 km) |
| Madrid to Bollate | 737.46 mi (1,186.83 km) |
| Madrid to Bologna | 815.62 mi (1,312.61 km) |
| Madrid to Bolzano | 862.19 mi (1,387.56 km) |
| Madrid to Bomporto | 805.46 mi (1,296.27 km) |
| Madrid to Bonate di Sopra | 761.07 mi (1,224.83 km) |
| Madrid to Bondeno | 826.44 mi (1,330.02 km) |
| Madrid to Bordighera | 626.91 mi (1,008.92 km) |
| Madrid to Borgaro Torinese | 661.23 mi (1,064.15 km) |
| Madrid to Borgo a Buggiano | 776.12 mi (1,249.04 km) |
| Madrid to Borgo San Dalmazzo | 631.14 mi (1,015.72 km) |
| Madrid to Borgo San Lorenzo | 808.69 mi (1,301.47 km) |
| Madrid to Borgomanero | 713.50 mi (1,148.27 km) |
| Madrid to Borgoricco | 865.17 mi (1,392.35 km) |
