| Round Lake to Beyne-Heusay | 4,191.63 mi (6,745.77 km) |
| Round Lake to Bierbeek | 4,150.92 mi (6,680.26 km) |
| Round Lake to Bilzen | 4,177.51 mi (6,723.05 km) |
| Round Lake to Binche | 4,144.16 mi (6,669.38 km) |
| Round Lake to Bissegem | 4,093.62 mi (6,588.04 km) |
| Round Lake to Blankenberge | 4,072.91 mi (6,554.71 km) |
| Round Lake to Blegny | 4,192.87 mi (6,747.78 km) |
| Round Lake to Bocholt | 4,168.64 mi (6,708.78 km) |
| Round Lake to Boechout | 4,128.99 mi (6,644.97 km) |
| Round Lake to Bonheiden | 4,135.04 mi (6,654.70 km) |
| Round Lake to Boom | 4,127.06 mi (6,641.86 km) |
| Round Lake to Boortmeerbeek | 4,138.08 mi (6,659.59 km) |
| Round Lake to Borgerhout | 4,125.20 mi (6,638.87 km) |
| Round Lake to Borgloon | 4,173.45 mi (6,716.52 km) |
| Round Lake to Bornem | 4,121.51 mi (6,632.93 km) |
