| Ciro Marina to Navodari | 682.11 mi (1,097.75 km) |
| Ciro Marina to Negresti-Oas | 665.86 mi (1,071.61 km) |
| Ciro Marina to Nehoiu | 624.13 mi (1,004.44 km) |
| Ciro Marina to Ocna Mures | 592.37 mi (953.32 km) |
| Ciro Marina to Odobesti | 670.76 mi (1,079.48 km) |
| Ciro Marina to Odorheiu Secuiesc | 633.10 mi (1,018.88 km) |
| Ciro Marina to Oltenita | 588.18 mi (946.58 km) |
| Ciro Marina to Onesti | 681.23 mi (1,096.34 km) |
| Ciro Marina to Oradea | 584.09 mi (940.00 km) |
| Ciro Marina to Orastie | 543.54 mi (874.75 km) |
| Ciro Marina to Oravita | 455.81 mi (733.56 km) |
| Ciro Marina to Orsova | 458.04 mi (737.15 km) |
| Ciro Marina to Otelu Rosu | 501.22 mi (806.64 km) |
| Ciro Marina to Otopeni | 581.83 mi (936.36 km) |
| Ciro Marina to Ovidiu | 678.19 mi (1,091.44 km) |
