| Cities | Distance |
|---|---|
| Harpenden to Ivybridge | 183.58 mi (295.44 km) |
| Harpenden to Jarrow | 223.56 mi (359.79 km) |
| Harpenden to Johnstone | 324.96 mi (522.97 km) |
| Harpenden to Kearsley | 145.40 mi (234.00 km) |
| Harpenden to Keighley | 155.82 mi (250.77 km) |
| Harpenden to Kempston | 21.39 mi (34.43 km) |
| Harpenden to Kendal | 199.73 mi (321.44 km) |
| Harpenden to Kenilworth | 62.96 mi (101.32 km) |
| Harpenden to Kenley | 35.81 mi (57.62 km) |
| Harpenden to Kensington | 23.01 mi (37.04 km) |
| Harpenden to Kenton | 15.98 mi (25.72 km) |
| Harpenden to Kettering | 42.77 mi (68.82 km) |
| Harpenden to Kew Green | 20.55 mi (33.07 km) |
| Harpenden to Keynsham | 96.14 mi (154.72 km) |
| Harpenden to Kidbrooke | 29.46 mi (47.42 km) |