| Harpenden to Bonita (California) | 5,459.17 mi (8,785.69 km) |
| Harpenden to Bonita Springs (Florida) | 4,452.31 mi (7,165.31 km) |
| Harpenden to Bonney Lake (Washington) | 4,781.59 mi (7,695.23 km) |
| Harpenden to Boone (Iowa) | 4,153.41 mi (6,684.27 km) |
| Harpenden to Boone (North Carolina) | 3,961.66 mi (6,375.67 km) |
| Harpenden to Borger (Texas) | 4,752.08 mi (7,647.73 km) |
| Harpenden to Bossier City (Louisiana) | 4,621.79 mi (7,438.04 km) |
| Harpenden to Boston (Massachusetts) | 3,258.01 mi (5,243.25 km) |
| Harpenden to Bostonia (California) | 5,447.72 mi (8,767.26 km) |
| Harpenden to Bothell (Washington) | 4,748.55 mi (7,642.05 km) |
| Harpenden to Bothell East (Washington) | 4,746.15 mi (7,638.18 km) |
| Harpenden to Bothell West (Washington) | 4,747.65 mi (7,640.60 km) |
| Harpenden to Boulder (Colorado) | 4,659.01 mi (7,497.95 km) |
| Harpenden to Boulder City (Nevada) | 5,210.48 mi (8,385.45 km) |
| Harpenden to Bound Brook (New Jersey) | 3,473.32 mi (5,589.77 km) |
