| Merthyr Tudful to Beuvry | 275.81 mi (443.87 km) |
| Merthyr Tudful to Beziers | 655.98 mi (1,055.69 km) |
| Merthyr Tudful to Bezons | 314.15 mi (505.58 km) |
| Merthyr Tudful to Biarritz | 577.11 mi (928.78 km) |
| Merthyr Tudful to Biganos | 502.70 mi (809.02 km) |
| Merthyr Tudful to Billere | 599.40 mi (964.64 km) |
| Merthyr Tudful to Biot | 741.26 mi (1,192.94 km) |
| Merthyr Tudful to Biscarrosse | 517.95 mi (833.56 km) |
| Merthyr Tudful to Bischheim | 537.12 mi (864.41 km) |
| Merthyr Tudful to Bischwiller | 536.53 mi (863.47 km) |
| Merthyr Tudful to Blagnac | 602.10 mi (968.98 km) |
| Merthyr Tudful to Blain | 303.52 mi (488.48 km) |
| Merthyr Tudful to Blanquefort | 488.48 mi (786.13 km) |
| Merthyr Tudful to Blois | 355.47 mi (572.07 km) |
| Merthyr Tudful to Bobigny | 322.56 mi (519.11 km) |
