| Acton to Brownsburg (Indiana) | 3,989.25 mi (6,420.08 km) |
| Acton to Brownsville (Florida) | 4,421.40 mi (7,115.56 km) |
| Acton to Brownsville (Texas) | 5,123.25 mi (8,245.08 km) |
| Acton to Brownwood (Texas) | 4,881.48 mi (7,855.98 km) |
| Acton to Brunswick (Georgia) | 4,207.97 mi (6,772.08 km) |
| Acton to Brunswick (Ohio) | 3,745.45 mi (6,027.72 km) |
| Acton to Brushy Creek (Texas) | 4,896.51 mi (7,880.16 km) |
| Acton to Bryan (Texas) | 4,835.60 mi (7,782.14 km) |
| Acton to Bryant (Arkansas) | 4,481.50 mi (7,212.27 km) |
| Acton to Bryn Mawr-Skyway (Washington) | 4,784.15 mi (7,699.34 km) |
| Acton to Buckeye (Arizona) | 5,285.14 mi (8,505.60 km) |
| Acton to Buckhall (Virginia) | 3,683.66 mi (5,928.29 km) |
| Acton to Bucyrus (Ohio) | 3,810.79 mi (6,132.87 km) |
| Acton to Buda (Texas) | 4,923.68 mi (7,923.89 km) |
| Acton to Buena Park (California) | 5,439.08 mi (8,753.35 km) |
