| Key Largo to Bonhill | 4,255.50 mi (6,848.57 km) |
| Key Largo to Bonnyrigg | 4,312.56 mi (6,940.39 km) |
| Key Largo to Bootle | 4,332.98 mi (6,973.26 km) |
| Key Largo to Borehamwood | 4,462.40 mi (7,181.53 km) |
| Key Largo to Boscombe | 4,405.01 mi (7,089.18 km) |
| Key Largo to Boston | 4,458.93 mi (7,175.96 km) |
| Key Largo to Bottesford | 4,426.64 mi (7,123.99 km) |
| Key Largo to Bourne | 4,446.35 mi (7,155.71 km) |
| Key Largo to Bournemouth | 4,403.33 mi (7,086.48 km) |
| Key Largo to Bournville | 4,384.81 mi (7,056.68 km) |
| Key Largo to Bovingdon | 4,450.51 mi (7,162.40 km) |
| Key Largo to Bowdon | 4,359.02 mi (7,015.16 km) |
| Key Largo to Boxley | 4,501.02 mi (7,243.69 km) |
| Key Largo to Brackley | 4,421.61 mi (7,115.89 km) |
| Key Largo to Bracknell | 4,444.75 mi (7,153.13 km) |
