| Zelenikovo to Navodari | 392.16 mi (631.12 km) |
| Zelenikovo to Negresti-Oas | 423.00 mi (680.76 km) |
| Zelenikovo to Nehoiu | 336.12 mi (540.94 km) |
| Zelenikovo to Ocna Mures | 330.89 mi (532.52 km) |
| Zelenikovo to Odobesti | 382.55 mi (615.65 km) |
| Zelenikovo to Odorheiu Secuiesc | 357.03 mi (574.59 km) |
| Zelenikovo to Oltenita | 296.98 mi (477.95 km) |
| Zelenikovo to Onesti | 396.59 mi (638.24 km) |
| Zelenikovo to Oradea | 358.66 mi (577.21 km) |
| Zelenikovo to Orastie | 285.37 mi (459.25 km) |
| Zelenikovo to Oravita | 217.95 mi (350.75 km) |
| Zelenikovo to Orsova | 200.30 mi (322.35 km) |
| Zelenikovo to Otelu Rosu | 253.84 mi (408.51 km) |
| Zelenikovo to Otopeni | 291.15 mi (468.57 km) |
| Zelenikovo to Ovidiu | 388.36 mi (625.00 km) |
