| Harpenden to Brownsburg (Indiana) | 3,977.22 mi (6,400.72 km) |
| Harpenden to Brownsville (Florida) | 4,414.52 mi (7,104.48 km) |
| Harpenden to Brownsville (Texas) | 5,112.15 mi (8,227.21 km) |
| Harpenden to Brownwood (Texas) | 4,868.86 mi (7,835.67 km) |
| Harpenden to Brunswick (Georgia) | 4,199.35 mi (6,758.20 km) |
| Harpenden to Brunswick (Ohio) | 3,733.89 mi (6,009.12 km) |
| Harpenden to Brushy Creek (Texas) | 4,884.39 mi (7,860.67 km) |
| Harpenden to Bryan (Texas) | 4,823.74 mi (7,763.05 km) |
| Harpenden to Bryant (Arkansas) | 4,469.56 mi (7,193.07 km) |
| Harpenden to Bryn Mawr-Skyway (Washington) | 4,765.42 mi (7,669.20 km) |
| Harpenden to Buckeye (Arizona) | 5,269.59 mi (8,480.59 km) |
| Harpenden to Buckhall (Virginia) | 3,673.74 mi (5,912.31 km) |
| Harpenden to Bucyrus (Ohio) | 3,799.14 mi (6,114.12 km) |
| Harpenden to Buda (Texas) | 4,911.63 mi (7,904.50 km) |
| Harpenden to Buena Park (California) | 5,422.56 mi (8,726.77 km) |
