| Karlovac to Jakobstad | 1,286.68 mi (2,070.71 km) |
| Karlovac to Jamsa | 1,195.67 mi (1,924.25 km) |
| Karlovac to Janakkala | 1,128.39 mi (1,815.97 km) |
| Karlovac to Jarvenpaa | 1,106.62 mi (1,780.93 km) |
| Karlovac to Joensuu | 1,308.75 mi (2,106.23 km) |
| Karlovac to Joutseno | 1,200.61 mi (1,932.19 km) |
| Karlovac to Jyvaskyla | 1,226.65 mi (1,974.11 km) |
| Karlovac to Jyvaskylan Maalaiskunta | 1,229.63 mi (1,978.90 km) |
| Karlovac to Kaarina | 1,067.64 mi (1,718.21 km) |
| Karlovac to Kajaani | 1,377.22 mi (2,216.43 km) |
| Karlovac to Kalajoki | 1,337.38 mi (2,152.30 km) |
| Karlovac to Kangasala | 1,156.05 mi (1,860.49 km) |
| Karlovac to Kankaanpaa | 1,160.23 mi (1,867.22 km) |
| Karlovac to Karhula | 1,137.67 mi (1,830.90 km) |
| Karlovac to Karis | 1,061.53 mi (1,708.36 km) |
