| Reggio Emilia to Navodari | 884.50 mi (1,423.46 km) |
| Reggio Emilia to Negresti-Oas | 647.88 mi (1,042.66 km) |
| Reggio Emilia to Nehoiu | 765.42 mi (1,231.83 km) |
| Reggio Emilia to Ocna Mures | 649.79 mi (1,045.73 km) |
| Reggio Emilia to Odobesti | 801.56 mi (1,289.99 km) |
| Reggio Emilia to Odorheiu Secuiesc | 717.90 mi (1,155.35 km) |
| Reggio Emilia to Oltenita | 789.96 mi (1,271.32 km) |
| Reggio Emilia to Onesti | 787.70 mi (1,267.68 km) |
| Reggio Emilia to Oradea | 566.50 mi (911.69 km) |
| Reggio Emilia to Orastie | 615.50 mi (990.55 km) |
| Reggio Emilia to Oravita | 541.27 mi (871.09 km) |
| Reggio Emilia to Orsova | 577.06 mi (928.69 km) |
| Reggio Emilia to Otelu Rosu | 573.75 mi (923.37 km) |
| Reggio Emilia to Otopeni | 758.03 mi (1,219.94 km) |
| Reggio Emilia to Ovidiu | 882.38 mi (1,420.06 km) |
