| Klasterec nad Ohri to Navodari | 833.11 mi (1,340.76 km) |
| Klasterec nad Ohri to Negresti-Oas | 494.56 mi (795.92 km) |
| Klasterec nad Ohri to Nehoiu | 699.58 mi (1,125.87 km) |
| Klasterec nad Ohri to Ocna Mures | 562.00 mi (904.46 km) |
| Klasterec nad Ohri to Odobesti | 714.93 mi (1,150.56 km) |
| Klasterec nad Ohri to Odorheiu Secuiesc | 622.97 mi (1,002.57 km) |
| Klasterec nad Ohri to Oltenita | 765.24 mi (1,231.54 km) |
| Klasterec nad Ohri to Onesti | 685.37 mi (1,102.99 km) |
| Klasterec nad Ohri to Oradea | 459.36 mi (739.27 km) |
| Klasterec nad Ohri to Orastie | 557.96 mi (897.95 km) |
| Klasterec nad Ohri to Oravita | 540.68 mi (870.13 km) |
| Klasterec nad Ohri to Orsova | 580.53 mi (934.27 km) |
| Klasterec nad Ohri to Otelu Rosu | 541.14 mi (870.88 km) |
| Klasterec nad Ohri to Otopeni | 723.34 mi (1,164.10 km) |
| Klasterec nad Ohri to Ovidiu | 833.03 mi (1,340.64 km) |
