| Frederiksvaerk to Navodari | 1,084.15 mi (1,744.77 km) |
| Frederiksvaerk to Negresti-Oas | 739.28 mi (1,189.76 km) |
| Frederiksvaerk to Nehoiu | 960.25 mi (1,545.38 km) |
| Frederiksvaerk to Ocna Mures | 834.84 mi (1,343.55 km) |
| Frederiksvaerk to Odobesti | 958.95 mi (1,543.28 km) |
| Frederiksvaerk to Odorheiu Secuiesc | 878.16 mi (1,413.27 km) |
| Frederiksvaerk to Oltenita | 1,041.91 mi (1,676.80 km) |
| Frederiksvaerk to Onesti | 923.33 mi (1,485.95 km) |
| Frederiksvaerk to Oradea | 746.07 mi (1,200.69 km) |
| Frederiksvaerk to Orastie | 849.77 mi (1,367.57 km) |
| Frederiksvaerk to Oravita | 864.43 mi (1,391.17 km) |
| Frederiksvaerk to Orsova | 899.31 mi (1,447.30 km) |
| Frederiksvaerk to Otelu Rosu | 849.66 mi (1,367.39 km) |
| Frederiksvaerk to Otopeni | 999.82 mi (1,609.05 km) |
| Frederiksvaerk to Ovidiu | 1,085.45 mi (1,746.86 km) |
