| Middelkerke to Novi di Modena | 572.33 mi (921.08 km) |
| Middelkerke to Novi Ligure | 522.36 mi (840.65 km) |
| Middelkerke to Nuoro | 813.14 mi (1,308.63 km) |
| Middelkerke to Occhiobello | 591.67 mi (952.20 km) |
| Middelkerke to Oderzo | 578.55 mi (931.09 km) |
| Middelkerke to Oggiono | 477.87 mi (769.06 km) |
| Middelkerke to Olbia | 777.64 mi (1,251.49 km) |
| Middelkerke to Oleggio | 468.77 mi (754.41 km) |
| Middelkerke to Olgiate Comasco | 467.14 mi (751.78 km) |
| Middelkerke to Olgiate Olona | 473.44 mi (761.93 km) |
| Middelkerke to Omegna | 446.70 mi (718.89 km) |
| Middelkerke to Opera | 496.78 mi (799.48 km) |
| Middelkerke to Oppeano | 559.18 mi (899.91 km) |
| Middelkerke to Orbassano | 478.89 mi (770.70 km) |
| Middelkerke to Orbetello | 721.90 mi (1,161.78 km) |
