| Duncan to Belper | 4,600.64 mi (7,404.02 km) |
| Duncan to Bentley | 4,596.52 mi (7,397.39 km) |
| Duncan to Berkhampstead | 4,675.27 mi (7,524.12 km) |
| Duncan to Berwick-Upon-Tweed | 4,498.16 mi (7,239.08 km) |
| Duncan to Beverley | 4,613.38 mi (7,424.52 km) |
| Duncan to Bewdley | 4,589.53 mi (7,386.13 km) |
| Duncan to Bexleyheath | 4,711.50 mi (7,582.43 km) |
| Duncan to Bicester | 4,648.47 mi (7,481.00 km) |
| Duncan to Bickenhill | 4,609.77 mi (7,418.70 km) |
| Duncan to Bickley | 4,709.98 mi (7,579.97 km) |
| Duncan to Biddulph | 4,572.04 mi (7,357.98 km) |
| Duncan to Bideford | 4,558.23 mi (7,335.76 km) |
| Duncan to Bidston | 4,529.77 mi (7,289.96 km) |
| Duncan to Biggleswade | 4,676.16 mi (7,525.55 km) |
| Duncan to Billericay | 4,716.49 mi (7,590.45 km) |
