| Os to Barberino di Mugello | 1,146.38 mi (1,844.92 km) |
| Os to Barcellona-Pozzo di Gotto | 1,583.61 mi (2,548.57 km) |
| Os to Bareggio | 1,029.92 mi (1,657.49 km) |
| Os to Barga | 1,135.19 mi (1,826.91 km) |
| Os to Bari | 1,406.21 mi (2,263.07 km) |
| Os to Barletta | 1,385.11 mi (2,229.11 km) |
| Os to Baronissi | 1,403.44 mi (2,258.62 km) |
| Os to Barrafranca | 1,625.39 mi (2,615.81 km) |
| Os to Bassano del Grappa | 1,031.32 mi (1,659.75 km) |
| Os to Battipaglia | 1,414.74 mi (2,276.80 km) |
| Os to Beinasco | 1,054.50 mi (1,697.05 km) |
| Os to Bellinzago Novarese | 1,020.00 mi (1,641.54 km) |
| Os to Belluno | 1,011.25 mi (1,627.45 km) |
| Os to Belmonte Mezzagno | 1,570.81 mi (2,527.98 km) |
| Os to Belpasso | 1,619.20 mi (2,605.85 km) |
