| Kopervik to Navodari | 1,420.89 mi (2,286.70 km) |
| Kopervik to Negresti-Oas | 1,076.79 mi (1,732.93 km) |
| Kopervik to Nehoiu | 1,297.69 mi (2,088.44 km) |
| Kopervik to Ocna Mures | 1,172.25 mi (1,886.55 km) |
| Kopervik to Odobesti | 1,295.73 mi (2,085.27 km) |
| Kopervik to Odorheiu Secuiesc | 1,215.61 mi (1,956.34 km) |
| Kopervik to Oltenita | 1,379.46 mi (2,220.03 km) |
| Kopervik to Onesti | 1,259.90 mi (2,027.61 km) |
| Kopervik to Oradea | 1,082.41 mi (1,741.97 km) |
| Kopervik to Orastie | 1,186.33 mi (1,909.21 km) |
| Kopervik to Oravita | 1,197.22 mi (1,926.74 km) |
| Kopervik to Orsova | 1,233.17 mi (1,984.60 km) |
| Kopervik to Otelu Rosu | 1,184.62 mi (1,906.46 km) |
| Kopervik to Otopeni | 1,337.35 mi (2,152.26 km) |
| Kopervik to Ovidiu | 1,422.26 mi (2,288.91 km) |
