| Nedre Eiker to Olympia Heights (Florida) | 4,709.27 mi (7,578.84 km) |
| Nedre Eiker to Omaha (Nebraska) | 4,304.19 mi (6,926.92 km) |
| Nedre Eiker to On Top of the World Designated Place (Florida) | 4,578.74 mi (7,368.77 km) |
| Nedre Eiker to Onalaska (Wisconsin) | 4,015.41 mi (6,462.17 km) |
| Nedre Eiker to Oneida (New York) | 3,582.72 mi (5,765.82 km) |
| Nedre Eiker to Oneonta (New York) | 3,596.57 mi (5,788.11 km) |
| Nedre Eiker to Ontario (California) | 5,304.58 mi (8,536.90 km) |
| Nedre Eiker to Ontario (Oregon) | 4,664.60 mi (7,506.94 km) |
| Nedre Eiker to Opa-locka (Florida) | 4,696.25 mi (7,557.88 km) |
| Nedre Eiker to Opelika (Alabama) | 4,475.03 mi (7,201.86 km) |
| Nedre Eiker to Opelousas (Louisiana) | 4,812.21 mi (7,744.50 km) |
| Nedre Eiker to Orange (California) | 5,324.48 mi (8,568.92 km) |
| Nedre Eiker to Orange (Texas) | 4,888.17 mi (7,866.75 km) |
| Nedre Eiker to Orange City (Florida) | 4,555.39 mi (7,331.20 km) |
| Nedre Eiker to Orangeburg (South Carolina) | 4,280.68 mi (6,889.08 km) |
