| Bad Nenndorf to Novi di Modena | 518.94 mi (835.16 km) |
| Bad Nenndorf to Novi Ligure | 524.27 mi (843.72 km) |
| Bad Nenndorf to Nuoro | 830.52 mi (1,336.59 km) |
| Bad Nenndorf to Occhiobello | 522.06 mi (840.18 km) |
| Bad Nenndorf to Oderzo | 474.30 mi (763.32 km) |
| Bad Nenndorf to Oggiono | 452.81 mi (728.73 km) |
| Bad Nenndorf to Olbia | 789.08 mi (1,269.90 km) |
| Bad Nenndorf to Oleggio | 466.69 mi (751.07 km) |
| Bad Nenndorf to Olgiate Comasco | 453.19 mi (729.34 km) |
| Bad Nenndorf to Olgiate Olona | 463.71 mi (746.28 km) |
| Bad Nenndorf to Omegna | 448.41 mi (721.64 km) |
| Bad Nenndorf to Opera | 480.50 mi (773.30 km) |
| Bad Nenndorf to Oppeano | 493.04 mi (793.48 km) |
| Bad Nenndorf to Orbassano | 513.30 mi (826.08 km) |
| Bad Nenndorf to Orbetello | 689.15 mi (1,109.08 km) |
