| Opatija to Imielin | 402.54 mi (647.82 km) |
| Opatija to Inowroclaw | 545.51 mi (877.92 km) |
| Opatija to Janow Lubelski | 527.65 mi (849.17 km) |
| Opatija to Jarocin | 480.91 mi (773.96 km) |
| Opatija to Jaroslaw | 506.20 mi (814.64 km) |
| Opatija to Jasien | 650.30 mi (1,046.56 km) |
| Opatija to Jaslo | 452.31 mi (727.92 km) |
| Opatija to Jastrzebie-Zdroj | 376.03 mi (605.17 km) |
| Opatija to Jawor | 404.53 mi (651.02 km) |
| Opatija to Jaworzno | 407.89 mi (656.44 km) |
| Opatija to Jedrzejow | 459.13 mi (738.90 km) |
| Opatija to Jelcz-Laskowice | 417.79 mi (672.37 km) |
| Opatija to Jelenia Gora | 390.47 mi (628.41 km) |
| Opatija to Jozefoslaw | 559.11 mi (899.80 km) |
| Opatija to Jozefow | 565.63 mi (910.29 km) |
