| Harpenden to Roura | 4,395.84 mi (7,074.43 km) |
| Harpenden to Saint-Georges | 4,424.10 mi (7,119.91 km) |
| Harpenden to Saint-Laurent-du-Maroni | 4,415.86 mi (7,106.63 km) |
| Harpenden to Sinnamary | 4,381.92 mi (7,052.02 km) |
| Harpenden to Aachen | 287.12 mi (462.07 km) |
| Harpenden to Aalen | 504.47 mi (811.86 km) |
| Harpenden to Abensberg | 576.53 mi (927.84 km) |
| Harpenden to Achern | 431.93 mi (695.13 km) |
| Harpenden to Achim | 404.31 mi (650.68 km) |
| Harpenden to Adelsdorf | 511.97 mi (823.93 km) |
| Harpenden to Adendorf | 464.52 mi (747.57 km) |
| Harpenden to Aerzen | 409.68 mi (659.31 km) |
| Harpenden to Ahaus | 313.50 mi (504.53 km) |
| Harpenden to Ahlen | 352.13 mi (566.71 km) |
| Harpenden to Ahrensburg | 460.79 mi (741.56 km) |
