| Cities | Distance |
|---|---|
| Opatija to Marghita | 407.49 mi (655.80 km) |
| Opatija to Marginea | 573.38 mi (922.76 km) |
| Opatija to Matca | 640.08 mi (1,030.11 km) |
| Opatija to Medgidia | 687.78 mi (1,106.87 km) |
| Opatija to Media | 487.55 mi (784.64 km) |
| Opatija to Miercurea-Ciuc | 557.58 mi (897.35 km) |
| Opatija to Mioveni | 518.82 mi (834.95 km) |
| Opatija to Mizil | 591.31 mi (951.61 km) |
| Opatija to Moinesti | 590.29 mi (949.98 km) |
| Opatija to Moisei | 512.28 mi (824.44 km) |
| Opatija to Moldova Noua | 361.99 mi (582.56 km) |
| Opatija to Moreni | 552.81 mi (889.66 km) |
| Opatija to Motru | 424.49 mi (683.15 km) |
| Opatija to Murfatlar | 695.95 mi (1,120.03 km) |
| Opatija to Nasaud | 500.42 mi (805.36 km) |