| Bargoed to Brownsburg (Indiana) | 3,867.93 mi (6,224.84 km) |
| Bargoed to Brownsville (Florida) | 4,293.56 mi (6,909.82 km) |
| Bargoed to Brownsville (Texas) | 4,999.89 mi (8,046.55 km) |
| Bargoed to Brownwood (Texas) | 4,761.55 mi (7,662.98 km) |
| Bargoed to Brunswick (Georgia) | 4,081.21 mi (6,568.08 km) |
| Bargoed to Brunswick (Ohio) | 3,623.11 mi (5,830.83 km) |
| Bargoed to Brushy Creek (Texas) | 4,775.31 mi (7,685.12 km) |
| Bargoed to Bryan (Texas) | 4,713.82 mi (7,586.16 km) |
| Bargoed to Bryant (Arkansas) | 4,359.92 mi (7,016.61 km) |
| Bargoed to Bryn Mawr-Skyway (Washington) | 4,694.95 mi (7,555.79 km) |
| Bargoed to Buckeye (Arizona) | 5,175.37 mi (8,328.95 km) |
| Bargoed to Buckhall (Virginia) | 3,558.44 mi (5,726.76 km) |
| Bargoed to Bucyrus (Ohio) | 3,688.63 mi (5,936.28 km) |
| Bargoed to Buda (Texas) | 4,802.32 mi (7,728.58 km) |
| Bargoed to Buena Park (California) | 5,334.14 mi (8,584.47 km) |
