| Harpenden to Hohenhameln | 443.48 mi (713.71 km) |
| Harpenden to Hohenkirchen-Siegertsbrunn | 597.39 mi (961.41 km) |
| Harpenden to Hohenmolsen | 536.95 mi (864.14 km) |
| Harpenden to Hohenstein-Ernstthal | 568.06 mi (914.20 km) |
| Harpenden to Hohr-Grenzhausen | 360.59 mi (580.31 km) |
| Harpenden to Holzgerlingen | 468.02 mi (753.21 km) |
| Harpenden to Holzkirchen | 600.82 mi (966.92 km) |
| Harpenden to Holzminden | 418.23 mi (673.07 km) |
| Harpenden to Holzwickede | 342.10 mi (550.56 km) |
| Harpenden to Homburg | 378.71 mi (609.48 km) |
| Harpenden to Hoppegarten | 595.13 mi (957.77 km) |
| Harpenden to Horb am Neckar | 462.91 mi (744.97 km) |
| Harpenden to Horn-Bad Meinberg | 397.49 mi (639.71 km) |
| Harpenden to Horstel | 338.71 mi (545.10 km) |
| Harpenden to Hosbach | 434.33 mi (698.99 km) |
