| Middle River to Nasaud | 4,729.94 mi (7,612.10 km) |
| Middle River to Navodari | 5,014.77 mi (8,070.49 km) |
| Middle River to Negresti-Oas | 4,669.21 mi (7,514.37 km) |
| Middle River to Nehoiu | 4,881.69 mi (7,856.32 km) |
| Middle River to Ocna Mures | 4,744.44 mi (7,635.44 km) |
| Middle River to Odobesti | 4,893.86 mi (7,875.91 km) |
| Middle River to Odorheiu Secuiesc | 4,803.38 mi (7,730.29 km) |
| Middle River to Oltenita | 4,947.55 mi (7,962.31 km) |
| Middle River to Onesti | 4,861.98 mi (7,824.60 km) |
| Middle River to Oradea | 4,642.09 mi (7,470.72 km) |
| Middle River to Orastie | 4,740.06 mi (7,628.38 km) |
| Middle River to Oravita | 4,711.59 mi (7,582.57 km) |
| Middle River to Orsova | 4,752.59 mi (7,648.55 km) |
| Middle River to Otelu Rosu | 4,719.58 mi (7,595.42 km) |
| Middle River to Otopeni | 4,905.87 mi (7,895.24 km) |
