| Nideggen to Obernburg am Main | 131.56 mi (211.72 km) |
| Nideggen to Obernkirchen | 156.71 mi (252.19 km) |
| Nideggen to Oberschleissheim | 284.04 mi (457.12 km) |
| Nideggen to Oberstdorf | 284.92 mi (458.53 km) |
| Nideggen to Obertraubling | 280.11 mi (450.79 km) |
| Nideggen to Obertshausen | 112.39 mi (180.88 km) |
| Nideggen to Oberursel | 98.29 mi (158.18 km) |
| Nideggen to Ochsenfurt | 174.35 mi (280.59 km) |
| Nideggen to Ochsenhausen | 239.22 mi (384.98 km) |
| Nideggen to Ochtrup | 108.39 mi (174.43 km) |
| Nideggen to Odenthal | 35.96 mi (57.87 km) |
| Nideggen to Oelde | 106.40 mi (171.24 km) |
| Nideggen to Oelsnitz | 250.17 mi (402.62 km) |
| Nideggen to Oer-Erkenschwick | 73.10 mi (117.64 km) |
| Nideggen to Oerlinghausen | 128.61 mi (206.98 km) |
