| Merthyr Tudful to Borgosatollo | 756.05 mi (1,216.75 km) |
| Merthyr Tudful to Borgosesia | 673.20 mi (1,083.41 km) |
| Merthyr Tudful to Boscoreale | 1,136.08 mi (1,828.35 km) |
| Merthyr Tudful to Boscotrecase | 1,134.65 mi (1,826.04 km) |
| Merthyr Tudful to Botticino Sera | 753.28 mi (1,212.29 km) |
| Merthyr Tudful to Bovalino Marina | 1,331.91 mi (2,143.51 km) |
| Merthyr Tudful to Boves | 717.55 mi (1,154.79 km) |
| Merthyr Tudful to Boville Ernica | 1,055.39 mi (1,698.49 km) |
| Merthyr Tudful to Bovisio Masciago | 709.62 mi (1,142.02 km) |
| Merthyr Tudful to Bovolone | 799.44 mi (1,286.57 km) |
| Merthyr Tudful to Bra | 708.43 mi (1,140.11 km) |
| Merthyr Tudful to Bracciano | 987.81 mi (1,589.72 km) |
| Merthyr Tudful to Brandizzo | 684.16 mi (1,101.04 km) |
| Merthyr Tudful to Breganze | 796.74 mi (1,282.22 km) |
| Merthyr Tudful to Brembate | 725.01 mi (1,166.79 km) |
