| Key Largo to Beyne-Heusay | 4,728.22 mi (7,609.33 km) |
| Key Largo to Bierbeek | 4,687.17 mi (7,543.27 km) |
| Key Largo to Bilzen | 4,718.47 mi (7,593.65 km) |
| Key Largo to Binche | 4,668.23 mi (7,512.78 km) |
| Key Largo to Bissegem | 4,621.37 mi (7,437.38 km) |
| Key Largo to Blankenberge | 4,610.29 mi (7,419.54 km) |
| Key Largo to Blegny | 4,730.94 mi (7,613.71 km) |
| Key Largo to Bocholt | 4,716.18 mi (7,589.96 km) |
| Key Largo to Boechout | 4,670.27 mi (7,516.08 km) |
| Key Largo to Bonheiden | 4,674.17 mi (7,522.35 km) |
| Key Largo to Boom | 4,666.35 mi (7,509.77 km) |
| Key Largo to Boortmeerbeek | 4,676.35 mi (7,525.86 km) |
| Key Largo to Borgerhout | 4,667.54 mi (7,511.67 km) |
| Key Largo to Borgloon | 4,712.16 mi (7,583.49 km) |
| Key Largo to Bornem | 4,660.45 mi (7,500.27 km) |
