| Mulheim-Karlich to Novi di Modena | 411.23 mi (661.82 km) |
| Mulheim-Karlich to Novi Ligure | 393.44 mi (633.19 km) |
| Mulheim-Karlich to Nuoro | 701.42 mi (1,128.83 km) |
| Mulheim-Karlich to Occhiobello | 422.64 mi (680.17 km) |
| Mulheim-Karlich to Oderzo | 392.86 mi (632.25 km) |
| Mulheim-Karlich to Oggiono | 329.37 mi (530.07 km) |
| Mulheim-Karlich to Olbia | 661.38 mi (1,064.40 km) |
| Mulheim-Karlich to Oleggio | 334.89 mi (538.95 km) |
| Mulheim-Karlich to Olgiate Comasco | 325.23 mi (523.41 km) |
| Mulheim-Karlich to Olgiate Olona | 334.63 mi (538.54 km) |
| Mulheim-Karlich to Omegna | 314.34 mi (505.89 km) |
| Mulheim-Karlich to Opera | 354.77 mi (570.95 km) |
| Mulheim-Karlich to Oppeano | 390.75 mi (628.85 km) |
| Mulheim-Karlich to Orbassano | 371.70 mi (598.19 km) |
| Mulheim-Karlich to Orbetello | 576.77 mi (928.22 km) |
