| Merthyr Tudful to Bitonto | 1,198.15 mi (1,928.23 km) |
| Merthyr Tudful to Bitritto | 1,206.95 mi (1,942.40 km) |
| Merthyr Tudful to Bollate | 711.45 mi (1,144.97 km) |
| Merthyr Tudful to Bologna | 841.19 mi (1,353.77 km) |
| Merthyr Tudful to Bolzano | 756.45 mi (1,217.38 km) |
| Merthyr Tudful to Bomporto | 818.83 mi (1,317.78 km) |
| Merthyr Tudful to Bonate di Sopra | 721.90 mi (1,161.79 km) |
| Merthyr Tudful to Bondeno | 826.28 mi (1,329.77 km) |
| Merthyr Tudful to Bordighera | 750.45 mi (1,207.74 km) |
| Merthyr Tudful to Borgaro Torinese | 679.09 mi (1,092.89 km) |
| Merthyr Tudful to Borgo a Buggiano | 848.11 mi (1,364.91 km) |
| Merthyr Tudful to Borgo San Dalmazzo | 715.41 mi (1,151.34 km) |
| Merthyr Tudful to Borgo San Lorenzo | 868.12 mi (1,397.11 km) |
| Merthyr Tudful to Borgomanero | 681.12 mi (1,096.16 km) |
| Merthyr Tudful to Borgoricco | 819.80 mi (1,319.34 km) |
