| Boulder City to Beyne-Heusay | 5,457.90 mi (8,783.63 km) |
| Boulder City to Bierbeek | 5,419.81 mi (8,722.34 km) |
| Boulder City to Bilzen | 5,441.61 mi (8,757.43 km) |
| Boulder City to Binche | 5,421.60 mi (8,725.22 km) |
| Boulder City to Bissegem | 5,371.54 mi (8,644.66 km) |
| Boulder City to Blankenberge | 5,345.63 mi (8,602.95 km) |
| Boulder City to Blegny | 5,458.06 mi (8,783.90 km) |
| Boulder City to Bocholt | 5,428.75 mi (8,736.72 km) |
| Boulder City to Boechout | 5,395.75 mi (8,683.63 km) |
| Boulder City to Bonheiden | 5,402.90 mi (8,695.13 km) |
| Boulder City to Boom | 5,395.29 mi (8,682.88 km) |
| Boulder City to Boortmeerbeek | 5,406.34 mi (8,700.67 km) |
| Boulder City to Borgerhout | 5,391.47 mi (8,676.74 km) |
| Boulder City to Borgloon | 5,439.34 mi (8,753.77 km) |
| Boulder City to Bornem | 5,390.31 mi (8,674.86 km) |
