| Harpenden to Haram | 787.52 mi (1,267.38 km) |
| Harpenden to Harstad | 1,297.85 mi (2,088.69 km) |
| Harpenden to Haugesund | 570.84 mi (918.68 km) |
| Harpenden to Helleland | 543.62 mi (874.87 km) |
| Harpenden to Heum | 647.09 mi (1,041.39 km) |
| Harpenden to Honefoss | 706.85 mi (1,137.56 km) |
| Harpenden to Horten | 671.39 mi (1,080.50 km) |
| Harpenden to Kaldsletta | 1,381.37 mi (2,223.10 km) |
| Harpenden to Kirkenes | 1,572.91 mi (2,531.36 km) |
| Harpenden to Kleppe | 534.30 mi (859.87 km) |
| Harpenden to Kongsberg | 666.09 mi (1,071.97 km) |
| Harpenden to Kongsvinger | 747.42 mi (1,202.86 km) |
| Harpenden to Kopervik | 560.50 mi (902.04 km) |
| Harpenden to Kosvik | 549.46 mi (884.27 km) |
| Harpenden to Kragero | 618.20 mi (994.90 km) |
