| Hardenberg to Imatra | 1,018.43 mi (1,639.00 km) |
| Hardenberg to Jakobstad | 960.02 mi (1,545.01 km) |
| Hardenberg to Jamsa | 940.04 mi (1,512.85 km) |
| Hardenberg to Janakkala | 889.10 mi (1,430.86 km) |
| Hardenberg to Jarvenpaa | 886.14 mi (1,426.10 km) |
| Hardenberg to Joensuu | 1,091.72 mi (1,756.96 km) |
| Hardenberg to Joutseno | 1,008.66 mi (1,623.27 km) |
| Hardenberg to Jyvaskyla | 969.66 mi (1,560.52 km) |
| Hardenberg to Jyvaskylan Maalaiskunta | 971.52 mi (1,563.52 km) |
| Hardenberg to Kaarina | 804.99 mi (1,295.51 km) |
| Hardenberg to Kajaani | 1,100.24 mi (1,770.66 km) |
| Hardenberg to Kalajoki | 1,016.14 mi (1,635.31 km) |
| Hardenberg to Kangasala | 894.04 mi (1,438.81 km) |
| Hardenberg to Kankaanpaa | 865.17 mi (1,392.36 km) |
| Hardenberg to Karhula | 942.77 mi (1,517.25 km) |
