| Knokke-Heist to Novi di Modena | 566.67 mi (911.97 km) |
| Knokke-Heist to Novi Ligure | 520.55 mi (837.74 km) |
| Knokke-Heist to Nuoro | 814.76 mi (1,311.24 km) |
| Knokke-Heist to Occhiobello | 584.96 mi (941.40 km) |
| Knokke-Heist to Oderzo | 569.15 mi (915.96 km) |
| Knokke-Heist to Oggiono | 473.29 mi (761.69 km) |
| Knokke-Heist to Olbia | 778.61 mi (1,253.04 km) |
| Knokke-Heist to Oleggio | 465.92 mi (749.82 km) |
| Knokke-Heist to Olgiate Comasco | 463.29 mi (745.60 km) |
| Knokke-Heist to Olgiate Olona | 470.04 mi (756.45 km) |
| Knokke-Heist to Omegna | 443.82 mi (714.26 km) |
| Knokke-Heist to Opera | 493.17 mi (793.67 km) |
| Knokke-Heist to Oppeano | 552.41 mi (889.02 km) |
| Knokke-Heist to Orbassano | 479.25 mi (771.28 km) |
| Knokke-Heist to Orbetello | 719.02 mi (1,157.15 km) |
