| Dundalk to Bonhill | 3,370.02 mi (5,423.53 km) |
| Dundalk to Bonnyrigg | 3,426.96 mi (5,515.17 km) |
| Dundalk to Bootle | 3,472.22 mi (5,588.00 km) |
| Dundalk to Borehamwood | 3,617.02 mi (5,821.03 km) |
| Dundalk to Boscombe | 3,572.53 mi (5,749.43 km) |
| Dundalk to Boston | 3,599.22 mi (5,792.39 km) |
| Dundalk to Bottesford | 3,561.85 mi (5,732.24 km) |
| Dundalk to Bourne | 3,589.30 mi (5,776.42 km) |
| Dundalk to Bournemouth | 3,570.97 mi (5,746.93 km) |
| Dundalk to Bournville | 3,533.61 mi (5,686.79 km) |
| Dundalk to Bovingdon | 3,604.85 mi (5,801.45 km) |
| Dundalk to Bowdon | 3,498.24 mi (5,629.88 km) |
| Dundalk to Boxley | 3,658.11 mi (5,887.15 km) |
| Dundalk to Brackley | 3,573.56 mi (5,751.09 km) |
| Dundalk to Bracknell | 3,602.77 mi (5,798.11 km) |
