| Merthyr Tudful to Bargas | 816.08 mi (1,313.36 km) |
| Merthyr Tudful to Bayona | 712.90 mi (1,147.30 km) |
| Merthyr Tudful to Baza | 985.70 mi (1,586.33 km) |
| Merthyr Tudful to Beasain | 603.46 mi (971.18 km) |
| Merthyr Tudful to Bejar | 793.07 mi (1,276.33 km) |
| Merthyr Tudful to Benaguacil | 850.05 mi (1,368.02 km) |
| Merthyr Tudful to Benahavis | 1,055.05 mi (1,697.94 km) |
| Merthyr Tudful to Benalmadena | 1,047.77 mi (1,686.22 km) |
| Merthyr Tudful to Benavente | 681.55 mi (1,096.85 km) |
| Merthyr Tudful to Benetuser | 863.03 mi (1,388.91 km) |
| Merthyr Tudful to Beniajan | 957.29 mi (1,540.61 km) |
| Merthyr Tudful to Benicarlo | 803.14 mi (1,292.53 km) |
| Merthyr Tudful to Benicasim | 824.08 mi (1,326.24 km) |
| Merthyr Tudful to Beniel | 953.33 mi (1,534.24 km) |
| Merthyr Tudful to Benifayo | 872.36 mi (1,403.93 km) |
