| Nelson to Oerlinghausen | 471.10 mi (758.17 km) |
| Nelson to Oestrich-Winkel | 509.01 mi (819.17 km) |
| Nelson to Offenburg | 574.47 mi (924.53 km) |
| Nelson to Oftersheim | 555.91 mi (894.64 km) |
| Nelson to Ohrdruf | 583.91 mi (939.71 km) |
| Nelson to Ohringen | 595.85 mi (958.93 km) |
| Nelson to Olbernhau | 691.59 mi (1,113.01 km) |
| Nelson to Olching | 703.65 mi (1,132.42 km) |
| Nelson to Oldenburg | 431.09 mi (693.77 km) |
| Nelson to Oldenburg in Holstein | 531.41 mi (855.23 km) |
| Nelson to Olfen | 426.74 mi (686.77 km) |
| Nelson to Olpe | 465.55 mi (749.23 km) |
| Nelson to Olsberg | 480.27 mi (772.91 km) |
| Nelson to Oranienburg | 641.30 mi (1,032.07 km) |
| Nelson to Ortenberg | 534.68 mi (860.48 km) |
