| Barmstedt to Navodari | 1,069.45 mi (1,721.11 km) |
| Barmstedt to Negresti-Oas | 720.77 mi (1,159.97 km) |
| Barmstedt to Nehoiu | 938.71 mi (1,510.71 km) |
| Barmstedt to Ocna Mures | 804.54 mi (1,294.78 km) |
| Barmstedt to Odobesti | 946.03 mi (1,522.49 km) |
| Barmstedt to Odorheiu Secuiesc | 857.99 mi (1,380.80 km) |
| Barmstedt to Oltenita | 1,012.83 mi (1,629.98 km) |
| Barmstedt to Onesti | 912.82 mi (1,469.04 km) |
| Barmstedt to Oradea | 706.27 mi (1,136.63 km) |
| Barmstedt to Orastie | 809.42 mi (1,302.64 km) |
| Barmstedt to Oravita | 805.32 mi (1,296.04 km) |
| Barmstedt to Orsova | 843.75 mi (1,357.88 km) |
| Barmstedt to Otelu Rosu | 799.69 mi (1,286.97 km) |
| Barmstedt to Otopeni | 970.31 mi (1,561.56 km) |
| Barmstedt to Ovidiu | 1,070.04 mi (1,722.06 km) |
