| Bockhorn to Navodari | 1,120.55 mi (1,803.35 km) |
| Bockhorn to Negresti-Oas | 773.53 mi (1,244.88 km) |
| Bockhorn to Nehoiu | 988.44 mi (1,590.74 km) |
| Bockhorn to Ocna Mures | 852.50 mi (1,371.97 km) |
| Bockhorn to Odobesti | 998.48 mi (1,606.90 km) |
| Bockhorn to Odorheiu Secuiesc | 908.82 mi (1,462.61 km) |
| Bockhorn to Oltenita | 1,059.46 mi (1,705.04 km) |
| Bockhorn to Onesti | 966.26 mi (1,555.05 km) |
| Bockhorn to Oradea | 752.07 mi (1,210.34 km) |
| Bockhorn to Orastie | 853.77 mi (1,374.01 km) |
| Bockhorn to Oravita | 842.43 mi (1,355.76 km) |
| Bockhorn to Orsova | 881.88 mi (1,419.25 km) |
| Bockhorn to Otelu Rosu | 840.52 mi (1,352.68 km) |
| Bockhorn to Otopeni | 1,017.09 mi (1,636.86 km) |
| Bockhorn to Ovidiu | 1,120.91 mi (1,803.93 km) |
