| Nigran to Oerlinghausen | 1,061.63 mi (1,708.54 km) |
| Nigran to Oestrich-Winkel | 967.99 mi (1,557.83 km) |
| Nigran to Offenburg | 920.62 mi (1,481.60 km) |
| Nigran to Oftersheim | 972.42 mi (1,564.97 km) |
| Nigran to Ohrdruf | 1,101.19 mi (1,772.19 km) |
| Nigran to Ohringen | 1,005.70 mi (1,618.52 km) |
| Nigran to Olbernhau | 1,201.41 mi (1,933.48 km) |
| Nigran to Olching | 1,061.76 mi (1,708.73 km) |
| Nigran to Oldenburg | 1,092.77 mi (1,758.64 km) |
| Nigran to Oldenburg in Holstein | 1,227.99 mi (1,976.26 km) |
| Nigran to Olfen | 1,006.49 mi (1,619.79 km) |
| Nigran to Olpe | 996.33 mi (1,603.43 km) |
| Nigran to Olsberg | 1,032.35 mi (1,661.41 km) |
| Nigran to Oranienburg | 1,255.97 mi (2,021.29 km) |
| Nigran to Ortenberg | 1,020.76 mi (1,642.75 km) |
