| Cities | Distance |
|---|---|
| Koper to Noventa Vicentina | 108.28 mi (174.25 km) |
| Koper to Novi di Modena | 145.10 mi (233.52 km) |
| Koper to Novi Ligure | 247.14 mi (397.74 km) |
| Koper to Nuoro | 424.44 mi (683.07 km) |
| Koper to Occhiobello | 113.35 mi (182.42 km) |
| Koper to Oderzo | 61.98 mi (99.75 km) |
| Koper to Oggiono | 212.23 mi (341.55 km) |
| Koper to Olbia | 384.44 mi (618.70 km) |
| Koper to Oleggio | 246.64 mi (396.92 km) |
| Koper to Olgiate Comasco | 230.68 mi (371.25 km) |
| Koper to Olgiate Olona | 234.53 mi (377.44 km) |
| Koper to Omegna | 257.91 mi (415.07 km) |
| Koper to Opera | 219.13 mi (352.66 km) |
| Koper to Oppeano | 124.85 mi (200.93 km) |
| Koper to Orbassano | 303.50 mi (488.44 km) |