| Boulder City to Ayr | 4,916.93 mi (7,913.03 km) |
| Boulder City to Bacup | 5,067.96 mi (8,156.10 km) |
| Boulder City to Baguley | 5,078.68 mi (8,173.34 km) |
| Boulder City to Baildon | 5,075.46 mi (8,168.17 km) |
| Boulder City to Bailleston | 4,916.93 mi (7,913.04 km) |
| Boulder City to Balderton | 5,141.86 mi (8,275.02 km) |
| Boulder City to Baldock | 5,208.02 mi (8,381.50 km) |
| Boulder City to Balham | 5,233.78 mi (8,422.96 km) |
| Boulder City to Bamber Bridge | 5,052.16 mi (8,130.67 km) |
| Boulder City to Banbridge | 4,910.01 mi (7,901.90 km) |
| Boulder City to Banbury | 5,167.57 mi (8,316.41 km) |
| Boulder City to Bangor | 4,916.36 mi (7,912.11 km) |
| Boulder City to Bangor | 5,025.80 mi (8,088.25 km) |
| Boulder City to Banstead | 5,237.55 mi (8,429.02 km) |
| Boulder City to Bargoed | 5,120.65 mi (8,240.89 km) |
