| Hattingen to Novi di Modena | 480.87 mi (773.89 km) |
| Hattingen to Novi Ligure | 464.65 mi (747.79 km) |
| Hattingen to Nuoro | 772.58 mi (1,243.34 km) |
| Hattingen to Occhiobello | 491.05 mi (790.26 km) |
| Hattingen to Oderzo | 457.46 mi (736.20 km) |
| Hattingen to Oggiono | 400.38 mi (644.35 km) |
| Hattingen to Olbia | 732.59 mi (1,178.99 km) |
| Hattingen to Oleggio | 406.11 mi (653.57 km) |
| Hattingen to Olgiate Comasco | 396.43 mi (638.00 km) |
| Hattingen to Olgiate Olona | 405.86 mi (653.17 km) |
| Hattingen to Omegna | 385.51 mi (620.42 km) |
| Hattingen to Opera | 425.93 mi (685.47 km) |
| Hattingen to Oppeano | 459.48 mi (739.46 km) |
| Hattingen to Orbassano | 441.93 mi (711.22 km) |
| Hattingen to Orbetello | 647.31 mi (1,041.75 km) |
