| Bucharest to Navodari | 124.16 mi (199.82 km) |
| Bucharest to Negresti-Oas | 269.85 mi (434.28 km) |
| Bucharest to Nehoiu | 64.36 mi (103.58 km) |
| Bucharest to Ocna Mures | 173.59 mi (279.36 km) |
| Bucharest to Odobesti | 103.45 mi (166.49 km) |
| Bucharest to Odorheiu Secuiesc | 135.70 mi (218.38 km) |
| Bucharest to Oltenita | 35.58 mi (57.26 km) |
| Bucharest to Onesti | 130.24 mi (209.60 km) |
| Bucharest to Oradea | 271.83 mi (437.46 km) |
| Bucharest to Orastie | 172.09 mi (276.95 km) |
| Bucharest to Oravita | 220.87 mi (355.45 km) |
| Bucharest to Orsova | 183.58 mi (295.44 km) |
| Bucharest to Otelu Rosu | 198.08 mi (318.78 km) |
| Bucharest to Otopeni | 8.29 mi (13.34 km) |
| Bucharest to Ovidiu | 121.86 mi (196.12 km) |
