| Nieder-Olm to Novi di Modena | 368.69 mi (593.35 km) |
| Nieder-Olm to Novi Ligure | 356.81 mi (574.23 km) |
| Nieder-Olm to Nuoro | 664.98 mi (1,070.19 km) |
| Nieder-Olm to Occhiobello | 378.93 mi (609.83 km) |
| Nieder-Olm to Oderzo | 347.58 mi (559.38 km) |
| Nieder-Olm to Oggiono | 289.92 mi (466.58 km) |
| Nieder-Olm to Olbia | 624.41 mi (1,004.89 km) |
| Nieder-Olm to Oleggio | 298.34 mi (480.14 km) |
| Nieder-Olm to Olgiate Comasco | 287.20 mi (462.20 km) |
| Nieder-Olm to Olgiate Olona | 297.06 mi (478.07 km) |
| Nieder-Olm to Omegna | 278.62 mi (448.40 km) |
| Nieder-Olm to Opera | 316.18 mi (508.84 km) |
| Nieder-Olm to Oppeano | 347.29 mi (558.91 km) |
| Nieder-Olm to Orbassano | 340.05 mi (547.25 km) |
| Nieder-Olm to Orbetello | 535.65 mi (862.04 km) |
