| Kampen to Navodari | 1,178.50 mi (1,896.61 km) |
| Kampen to Negresti-Oas | 836.28 mi (1,345.87 km) |
| Kampen to Nehoiu | 1,045.14 mi (1,682.00 km) |
| Kampen to Ocna Mures | 907.73 mi (1,460.84 km) |
| Kampen to Odobesti | 1,059.08 mi (1,704.43 km) |
| Kampen to Odorheiu Secuiesc | 967.68 mi (1,557.33 km) |
| Kampen to Oltenita | 1,111.24 mi (1,788.37 km) |
| Kampen to Onesti | 1,028.51 mi (1,655.23 km) |
| Kampen to Oradea | 805.29 mi (1,295.99 km) |
| Kampen to Orastie | 903.89 mi (1,454.67 km) |
| Kampen to Oravita | 882.54 mi (1,420.31 km) |
| Kampen to Orsova | 923.00 mi (1,485.43 km) |
| Kampen to Otelu Rosu | 885.84 mi (1,425.61 km) |
| Kampen to Otopeni | 1,069.37 mi (1,720.98 km) |
| Kampen to Ovidiu | 1,178.51 mi (1,896.63 km) |
