| Nedre Eiker to Oswego (Illinois) | 4,054.46 mi (6,525.03 km) |
| Nedre Eiker to Oswego (New York) | 3,589.71 mi (5,777.09 km) |
| Nedre Eiker to Otsego (Minnesota) | 4,006.63 mi (6,448.04 km) |
| Nedre Eiker to Ottawa (Illinois) | 4,087.60 mi (6,578.35 km) |
| Nedre Eiker to Ottawa (Kansas) | 4,436.01 mi (7,139.06 km) |
| Nedre Eiker to Ottumwa (Iowa) | 4,213.31 mi (6,780.67 km) |
| Nedre Eiker to Overland (Missouri) | 4,285.06 mi (6,896.13 km) |
| Nedre Eiker to Overland Park (Kansas) | 4,402.49 mi (7,085.12 km) |
| Nedre Eiker to Overlea (Maryland) | 3,810.69 mi (6,132.71 km) |
| Nedre Eiker to Oviedo (Florida) | 4,567.99 mi (7,351.47 km) |
| Nedre Eiker to Owasso (Oklahoma) | 4,587.68 mi (7,383.16 km) |
| Nedre Eiker to Owatonna (Minnesota) | 4,062.05 mi (6,537.23 km) |
| Nedre Eiker to Owensboro (Kentucky) | 4,238.83 mi (6,821.74 km) |
| Nedre Eiker to Owings Mills (Maryland) | 3,817.06 mi (6,142.96 km) |
| Nedre Eiker to Owosso (Michigan) | 3,855.14 mi (6,204.24 km) |
