| Harpenden to Karlskoga | 775.96 mi (1,248.79 km) |
| Harpenden to Karlskrona | 711.45 mi (1,144.96 km) |
| Harpenden to Karlstad | 749.26 mi (1,205.82 km) |
| Harpenden to Katrineholm | 813.52 mi (1,309.24 km) |
| Harpenden to Kavlinge | 612.89 mi (986.36 km) |
| Harpenden to Kinna | 651.19 mi (1,047.99 km) |
| Harpenden to Kiruna | 1,305.34 mi (2,100.74 km) |
| Harpenden to Klippansbruk | 622.54 mi (1,001.88 km) |
| Harpenden to Koping | 825.72 mi (1,328.87 km) |
| Harpenden to Kristianstad | 655.70 mi (1,055.24 km) |
| Harpenden to Kristinehamn | 763.19 mi (1,228.23 km) |
| Harpenden to Kumla | 785.54 mi (1,264.20 km) |
| Harpenden to Kungalv | 642.44 mi (1,033.90 km) |
| Harpenden to Kungsangen | 877.64 mi (1,412.43 km) |
| Harpenden to Kungsbacka | 630.61 mi (1,014.87 km) |
