| Gennep to Orangevale (California) | 5,428.78 mi (8,736.77 km) |
| Gennep to Orchards (Washington) | 5,045.13 mi (8,119.35 km) |
| Gennep to Orcutt (California) | 5,634.41 mi (9,067.71 km) |
| Gennep to Oregon (Ohio) | 4,023.68 mi (6,475.49 km) |
| Gennep to Oregon (Wisconsin) | 4,181.59 mi (6,729.62 km) |
| Gennep to Oregon City (Oregon) | 5,067.33 mi (8,155.08 km) |
| Gennep to Orem (Utah) | 5,061.55 mi (8,145.78 km) |
| Gennep to Orinda (California) | 5,503.05 mi (8,856.31 km) |
| Gennep to Orland Park (Illinois) | 4,190.40 mi (6,743.80 km) |
| Gennep to Orlando (Florida) | 4,590.09 mi (7,387.04 km) |
| Gennep to Ormond Beach (Florida) | 4,538.69 mi (7,304.32 km) |
| Gennep to Oro Valley (Arizona) | 5,487.07 mi (8,830.58 km) |
| Gennep to Oroville (California) | 5,389.54 mi (8,673.63 km) |
| Gennep to Oshkosh (Wisconsin) | 4,098.87 mi (6,596.49 km) |
| Gennep to Oskaloosa (Iowa) | 4,378.64 mi (7,046.75 km) |
