| Cities | Distance |
|---|---|
| Harpenden to Holbeach | 69.89 mi (112.47 km) |
| Harpenden to Holborn | 22.94 mi (36.91 km) |
| Harpenden to Hollinwood | 139.43 mi (224.40 km) |
| Harpenden to Holyhead | 207.18 mi (333.42 km) |
| Harpenden to Holywell | 157.06 mi (252.77 km) |
| Harpenden to Honiton | 141.28 mi (227.37 km) |
| Harpenden to Horbury | 136.87 mi (220.27 km) |
| Harpenden to Horley | 45.13 mi (72.64 km) |
| Harpenden to Hornchurch | 30.19 mi (48.58 km) |
| Harpenden to Horndean | 68.35 mi (109.99 km) |
| Harpenden to Hornsey | 18.82 mi (30.30 km) |
| Harpenden to Horsell | 34.95 mi (56.25 km) |
| Harpenden to Horsforth | 149.57 mi (240.71 km) |
| Harpenden to Horsham | 52.21 mi (84.03 km) |
| Harpenden to Horwich | 153.02 mi (246.26 km) |