| Opatija to Jakobstad | 1,308.16 mi (2,105.29 km) |
| Opatija to Jamsa | 1,222.55 mi (1,967.51 km) |
| Opatija to Janakkala | 1,155.81 mi (1,860.10 km) |
| Opatija to Jarvenpaa | 1,135.34 mi (1,827.16 km) |
| Opatija to Joensuu | 1,340.17 mi (2,156.79 km) |
| Opatija to Joutseno | 1,232.94 mi (1,984.22 km) |
| Opatija to Jyvaskyla | 1,253.79 mi (2,017.78 km) |
| Opatija to Jyvaskylan Maalaiskunta | 1,256.70 mi (2,022.47 km) |
| Opatija to Kaarina | 1,092.11 mi (1,757.58 km) |
| Opatija to Kajaani | 1,404.14 mi (2,259.74 km) |
| Opatija to Kalajoki | 1,359.88 mi (2,188.52 km) |
| Opatija to Kangasala | 1,181.87 mi (1,902.03 km) |
| Opatija to Kankaanpaa | 1,183.14 mi (1,904.08 km) |
| Opatija to Karhula | 1,168.97 mi (1,881.28 km) |
| Opatija to Karis | 1,088.60 mi (1,751.93 km) |
