| Boulder to Bierun | 5,353.94 mi (8,616.33 km) |
| Boulder to Bierun Stary | 5,356.02 mi (8,619.69 km) |
| Boulder to Bilgoraj | 5,432.84 mi (8,743.31 km) |
| Boulder to Biskupiec | 5,207.44 mi (8,380.56 km) |
| Boulder to Blachownia | 5,315.96 mi (8,555.20 km) |
| Boulder to Blonie | 5,286.80 mi (8,508.29 km) |
| Boulder to Bochnia | 5,399.83 mi (8,690.19 km) |
| Boulder to Bogatynia | 5,192.83 mi (8,357.06 km) |
| Boulder to Boguszow-Gorce | 5,236.79 mi (8,427.80 km) |
| Boulder to Boleslawiec | 5,192.73 mi (8,356.89 km) |
| Boulder to Braniewo | 5,150.57 mi (8,289.05 km) |
| Boulder to Brodnica | 5,197.90 mi (8,365.21 km) |
| Boulder to Brwinow | 5,292.61 mi (8,517.63 km) |
| Boulder to Brzeg | 5,269.10 mi (8,479.80 km) |
| Boulder to Brzeg Dolny | 5,226.22 mi (8,410.78 km) |
