| Knokke-Heist to Navodari | 1,262.87 mi (2,032.39 km) |
| Knokke-Heist to Negresti-Oas | 929.73 mi (1,496.26 km) |
| Knokke-Heist to Nehoiu | 1,129.23 mi (1,817.31 km) |
| Knokke-Heist to Ocna Mures | 991.66 mi (1,595.91 km) |
| Knokke-Heist to Odobesti | 1,147.61 mi (1,846.90 km) |
| Knokke-Heist to Odorheiu Secuiesc | 1,055.09 mi (1,698.01 km) |
| Knokke-Heist to Oltenita | 1,188.82 mi (1,913.23 km) |
| Knokke-Heist to Onesti | 1,119.24 mi (1,801.24 km) |
| Knokke-Heist to Oradea | 888.45 mi (1,429.82 km) |
| Knokke-Heist to Orastie | 981.93 mi (1,580.27 km) |
| Knokke-Heist to Oravita | 949.13 mi (1,527.47 km) |
| Knokke-Heist to Orsova | 990.14 mi (1,593.48 km) |
| Knokke-Heist to Otelu Rosu | 958.53 mi (1,542.60 km) |
| Knokke-Heist to Otopeni | 1,147.95 mi (1,847.45 km) |
| Knokke-Heist to Ovidiu | 1,262.47 mi (2,031.76 km) |
