| Boulder City to Barberino di Mugello | 5,970.21 mi (9,608.13 km) |
| Boulder City to Barcellona-Pozzo di Gotto | 6,413.59 mi (10,321.67 km) |
| Boulder City to Bareggio | 5,820.96 mi (9,367.93 km) |
| Boulder City to Barga | 5,941.59 mi (9,562.07 km) |
| Boulder City to Bari | 6,304.87 mi (10,146.70 km) |
| Boulder City to Barletta | 6,275.95 mi (10,100.16 km) |
| Boulder City to Baronissi | 6,258.33 mi (10,071.81 km) |
| Boulder City to Barrafranca | 6,421.12 mi (10,333.79 km) |
| Boulder City to Bassano del Grappa | 5,893.80 mi (9,485.16 km) |
| Boulder City to Battipaglia | 6,272.27 mi (10,094.25 km) |
| Boulder City to Beinasco | 5,797.26 mi (9,329.78 km) |
| Boulder City to Bellinzago Novarese | 5,803.55 mi (9,339.91 km) |
| Boulder City to Belluno | 5,889.27 mi (9,477.87 km) |
| Boulder City to Belmonte Mezzagno | 6,356.31 mi (10,229.49 km) |
| Boulder City to Belpasso | 6,436.35 mi (10,358.30 km) |
