| Boulder to Burnley | 4,515.13 mi (7,266.40 km) |
| Boulder to Burntwood | 4,570.20 mi (7,355.02 km) |
| Boulder to Burscough | 4,502.69 mi (7,246.39 km) |
| Boulder to Burslem | 4,546.72 mi (7,317.25 km) |
| Boulder to Burton upon Trent | 4,575.07 mi (7,362.87 km) |
| Boulder to Burtonwood | 4,515.34 mi (7,266.74 km) |
| Boulder to Bury | 4,521.19 mi (7,276.15 km) |
| Boulder to Bury Saint Edmunds | 4,677.47 mi (7,527.67 km) |
| Boulder to Bushey | 4,665.95 mi (7,509.12 km) |
| Boulder to Buxton | 4,547.49 mi (7,318.47 km) |
| Boulder to Caerdydd | 4,574.45 mi (7,361.87 km) |
| Boulder to Caerfyrddin | 4,519.68 mi (7,273.72 km) |
| Boulder to Caernarfon | 4,471.68 mi (7,196.47 km) |
| Boulder to Caerphilly | 4,569.27 mi (7,353.53 km) |
| Boulder to Caister-on-Sea | 4,694.37 mi (7,554.85 km) |
