| Cities | Distance |
|---|---|
| Koper to Nasaud | 521.87 mi (839.87 km) |
| Koper to Navodari | 731.66 mi (1,177.50 km) |
| Koper to Negresti-Oas | 485.89 mi (781.96 km) |
| Koper to Nehoiu | 608.88 mi (979.89 km) |
| Koper to Ocna Mures | 489.41 mi (787.64 km) |
| Koper to Odobesti | 643.32 mi (1,035.33 km) |
| Koper to Odorheiu Secuiesc | 557.92 mi (897.88 km) |
| Koper to Oltenita | 639.71 mi (1,029.52 km) |
| Koper to Onesti | 627.95 mi (1,010.59 km) |
| Koper to Oradea | 404.46 mi (650.91 km) |
| Koper to Orastie | 457.03 mi (735.51 km) |
| Koper to Oravita | 387.94 mi (624.33 km) |
| Koper to Orsova | 425.83 mi (685.30 km) |
| Koper to Otelu Rosu | 416.98 mi (671.06 km) |
| Koper to Otopeni | 605.54 mi (974.52 km) |