| Iserlohn to Novi di Modena | 472.43 mi (760.31 km) |
| Iserlohn to Novi Ligure | 460.57 mi (741.22 km) |
| Iserlohn to Nuoro | 768.77 mi (1,237.21 km) |
| Iserlohn to Occhiobello | 481.37 mi (774.69 km) |
| Iserlohn to Oderzo | 445.31 mi (716.65 km) |
| Iserlohn to Oggiono | 394.47 mi (634.84 km) |
| Iserlohn to Olbia | 728.41 mi (1,172.27 km) |
| Iserlohn to Oleggio | 402.02 mi (646.99 km) |
| Iserlohn to Olgiate Comasco | 391.44 mi (629.96 km) |
| Iserlohn to Olgiate Olona | 401.15 mi (645.60 km) |
| Iserlohn to Omegna | 381.87 mi (614.55 km) |
| Iserlohn to Opera | 420.59 mi (676.88 km) |
| Iserlohn to Oppeano | 450.14 mi (724.43 km) |
| Iserlohn to Orbassano | 440.58 mi (709.04 km) |
| Iserlohn to Orbetello | 640.02 mi (1,030.02 km) |
