| Kempen to Navodari | 1,132.53 mi (1,822.63 km) |
| Kempen to Negresti-Oas | 796.50 mi (1,281.84 km) |
| Kempen to Nehoiu | 998.84 mi (1,607.49 km) |
| Kempen to Ocna Mures | 861.14 mi (1,385.87 km) |
| Kempen to Odobesti | 1,015.88 mi (1,634.91 km) |
| Kempen to Odorheiu Secuiesc | 923.59 mi (1,486.37 km) |
| Kempen to Oltenita | 1,060.83 mi (1,707.23 km) |
| Kempen to Onesti | 986.88 mi (1,588.23 km) |
| Kempen to Oradea | 758.00 mi (1,219.88 km) |
| Kempen to Orastie | 853.45 mi (1,373.50 km) |
| Kempen to Oravita | 825.35 mi (1,328.27 km) |
| Kempen to Orsova | 866.21 mi (1,394.02 km) |
| Kempen to Otelu Rosu | 832.11 mi (1,339.15 km) |
| Kempen to Otopeni | 1,019.52 mi (1,640.77 km) |
| Kempen to Ovidiu | 1,132.27 mi (1,822.22 km) |
