| Merthyr Tudful to Brandon (Florida) | 4,267.98 mi (6,868.66 km) |
| Merthyr Tudful to Brandon (Mississippi) | 4,369.35 mi (7,031.79 km) |
| Merthyr Tudful to Brandon (South Dakota) | 4,070.22 mi (6,550.39 km) |
| Merthyr Tudful to Branson (Missouri) | 4,282.62 mi (6,892.21 km) |
| Merthyr Tudful to Braselton (Georgia) | 4,027.88 mi (6,482.25 km) |
| Merthyr Tudful to Brawley (California) | 5,293.24 mi (8,518.64 km) |
| Merthyr Tudful to Brea (California) | 5,318.79 mi (8,559.77 km) |
| Merthyr Tudful to Brecksville (Ohio) | 3,605.56 mi (5,802.58 km) |
| Merthyr Tudful to Bremerton (Washington) | 4,698.46 mi (7,561.44 km) |
| Merthyr Tudful to Brenham (Texas) | 4,733.72 mi (7,618.19 km) |
| Merthyr Tudful to Brent (Florida) | 4,347.54 mi (6,996.70 km) |
| Merthyr Tudful to Brentwood (California) | 5,214.36 mi (8,391.69 km) |
| Merthyr Tudful to Brentwood (New York) | 3,289.15 mi (5,293.38 km) |
| Merthyr Tudful to Brentwood (Tennessee) | 4,057.89 mi (6,530.54 km) |
| Merthyr Tudful to Bridgeport (Connecticut) | 3,269.49 mi (5,261.74 km) |
