| Merthyr Tudful to Boekel | 387.44 mi (623.52 km) |
| Merthyr Tudful to Bolsward | 386.33 mi (621.73 km) |
| Merthyr Tudful to Borger | 436.68 mi (702.77 km) |
| Merthyr Tudful to Borne | 431.98 mi (695.20 km) |
| Merthyr Tudful to Boskoop | 342.78 mi (551.64 km) |
| Merthyr Tudful to Boxmeer | 399.26 mi (642.55 km) |
| Merthyr Tudful to Boxtel | 373.29 mi (600.74 km) |
| Merthyr Tudful to Breda | 349.41 mi (562.32 km) |
| Merthyr Tudful to Breukelen | 357.82 mi (575.86 km) |
| Merthyr Tudful to Brielle | 322.25 mi (518.62 km) |
| Merthyr Tudful to Bronkhorst | 407.89 mi (656.43 km) |
| Merthyr Tudful to Brummen | 406.48 mi (654.16 km) |
| Merthyr Tudful to Brunssum | 406.70 mi (654.52 km) |
| Merthyr Tudful to Bunnik | 367.55 mi (591.52 km) |
| Merthyr Tudful to Burgum | 407.01 mi (655.02 km) |
