| Mackworth to Brownsburg (Indiana) | 3,900.26 mi (6,276.87 km) |
| Mackworth to Brownsville (Florida) | 4,353.65 mi (7,006.52 km) |
| Mackworth to Brownsville (Texas) | 5,037.71 mi (8,107.42 km) |
| Mackworth to Brownwood (Texas) | 4,790.12 mi (7,708.95 km) |
| Mackworth to Brunswick (Georgia) | 4,132.74 mi (6,650.99 km) |
| Mackworth to Brunswick (Ohio) | 3,658.33 mi (5,887.52 km) |
| Mackworth to Brushy Creek (Texas) | 4,807.06 mi (7,736.22 km) |
| Mackworth to Bryan (Texas) | 4,747.14 mi (7,639.78 km) |
| Mackworth to Bryant (Arkansas) | 4,392.80 mi (7,069.53 km) |
| Mackworth to Bryn Mawr-Skyway (Washington) | 4,674.26 mi (7,522.49 km) |
| Mackworth to Buckeye (Arizona) | 5,183.61 mi (8,342.21 km) |
| Mackworth to Buckhall (Virginia) | 3,603.11 mi (5,798.65 km) |
| Mackworth to Bucyrus (Ohio) | 3,723.30 mi (5,992.08 km) |
| Mackworth to Buda (Texas) | 4,834.49 mi (7,780.36 km) |
| Mackworth to Buena Park (California) | 5,334.59 mi (8,585.19 km) |
