| Duncan to Beyne-Heusay | 4,947.31 mi (7,961.93 km) |
| Duncan to Bierbeek | 4,906.64 mi (7,896.47 km) |
| Duncan to Bilzen | 4,933.14 mi (7,939.12 km) |
| Duncan to Binche | 4,899.97 mi (7,885.74 km) |
| Duncan to Bissegem | 4,849.43 mi (7,804.40 km) |
| Duncan to Blankenberge | 4,828.65 mi (7,770.96 km) |
| Duncan to Blegny | 4,948.54 mi (7,963.90 km) |
| Duncan to Bocholt | 4,924.18 mi (7,924.69 km) |
| Duncan to Boechout | 4,884.66 mi (7,861.10 km) |
| Duncan to Bonheiden | 4,890.73 mi (7,870.86 km) |
| Duncan to Boom | 4,882.75 mi (7,858.03 km) |
| Duncan to Boortmeerbeek | 4,893.77 mi (7,875.77 km) |
| Duncan to Borgerhout | 4,880.86 mi (7,854.98 km) |
| Duncan to Borgloon | 4,929.12 mi (7,932.65 km) |
| Duncan to Bornem | 4,877.21 mi (7,849.11 km) |
