| Boulder to Bagnolet | 4,880.73 mi (7,854.78 km) |
| Boulder to Bagnols-sur-Ceze | 5,171.72 mi (8,323.09 km) |
| Boulder to Bailleul | 4,810.09 mi (7,741.10 km) |
| Boulder to Balma | 5,079.28 mi (8,174.32 km) |
| Boulder to Bar-le-Duc | 4,980.61 mi (8,015.51 km) |
| Boulder to Barentin | 4,799.98 mi (7,724.82 km) |
| Boulder to Basse-Goulaine | 4,811.15 mi (7,742.80 km) |
| Boulder to Bastia | 5,417.40 mi (8,718.46 km) |
| Boulder to Bayeux | 4,752.36 mi (7,648.18 km) |
| Boulder to Bayonne | 4,969.16 mi (7,997.08 km) |
| Boulder to Beaucaire | 5,188.95 mi (8,350.80 km) |
| Boulder to Beauchamp | 4,866.39 mi (7,831.69 km) |
| Boulder to Beaumont | 5,042.90 mi (8,115.77 km) |
| Boulder to Beaumont-sur-Oise | 4,864.16 mi (7,828.10 km) |
| Boulder to Beaune | 5,048.60 mi (8,124.94 km) |
