| Opatija to Kokkola | 1,323.55 mi (2,130.05 km) |
| Opatija to Kontiolahti | 1,351.47 mi (2,174.98 km) |
| Opatija to Korsholm | 1,262.10 mi (2,031.15 km) |
| Opatija to Kotka | 1,166.22 mi (1,876.86 km) |
| Opatija to Kouvola | 1,185.71 mi (1,908.22 km) |
| Opatija to Kuhmo | 1,424.67 mi (2,292.78 km) |
| Opatija to Kuopio | 1,322.53 mi (2,128.40 km) |
| Opatija to Kurikka | 1,236.42 mi (1,989.83 km) |
| Opatija to Kuusamo | 1,529.90 mi (2,462.14 km) |
| Opatija to Kuusankoski | 1,186.72 mi (1,909.84 km) |
| Opatija to Lahti | 1,175.21 mi (1,891.31 km) |
| Opatija to Laitila | 1,115.70 mi (1,795.54 km) |
| Opatija to Lapinlahti | 1,346.67 mi (2,167.26 km) |
| Opatija to Lappeenranta | 1,223.77 mi (1,969.47 km) |
| Opatija to Lapua | 1,265.81 mi (2,037.13 km) |
