| Harpenden to Heckmondwike | 141.76 mi (228.13 km) |
| Harpenden to Hednesford | 93.12 mi (149.87 km) |
| Harpenden to Helensburgh | 340.37 mi (547.77 km) |
| Harpenden to Hellesdon | 88.88 mi (143.03 km) |
| Harpenden to Helston | 244.64 mi (393.71 km) |
| Harpenden to Hemel Hempstead | 6.71 mi (10.80 km) |
| Harpenden to Hemsworth | 130.70 mi (210.33 km) |
| Harpenden to Hendon | 17.05 mi (27.44 km) |
| Harpenden to Henley on Thames | 30.59 mi (49.23 km) |
| Harpenden to Hereford | 102.02 mi (164.19 km) |
| Harpenden to Herne Bay | 70.74 mi (113.85 km) |
| Harpenden to Hersham | 31.12 mi (50.08 km) |
| Harpenden to Hertford | 11.84 mi (19.05 km) |
| Harpenden to Hessle | 131.76 mi (212.05 km) |
| Harpenden to Heswall | 155.52 mi (250.29 km) |
