| Gennep to Odessa (Texas) | 5,221.68 mi (8,403.48 km) |
| Gennep to Ogden (Utah) | 5,016.99 mi (8,074.07 km) |
| Gennep to Oildale (California) | 5,561.05 mi (8,949.64 km) |
| Gennep to Ojus (Florida) | 4,670.48 mi (7,516.42 km) |
| Gennep to Okemos (Michigan) | 4,010.59 mi (6,454.42 km) |
| Gennep to Oklahoma City (Oklahoma) | 4,854.75 mi (7,812.97 km) |
| Gennep to Okmulgee (Oklahoma) | 4,792.48 mi (7,712.75 km) |
| Gennep to Olathe (Kansas) | 4,579.19 mi (7,369.49 km) |
| Gennep to Old Jamestown (Missouri) | 4,416.57 mi (7,107.78 km) |
| Gennep to Oldsmar (Florida) | 4,666.48 mi (7,509.97 km) |
| Gennep to Olean (New York) | 3,813.30 mi (6,136.92 km) |
| Gennep to Olive Branch (Mississippi) | 4,596.90 mi (7,397.99 km) |
| Gennep to Olivehurst (California) | 5,414.48 mi (8,713.76 km) |
| Gennep to Olney (Maryland) | 3,895.43 mi (6,269.09 km) |
| Gennep to Olympia (Washington) | 4,973.42 mi (8,003.95 km) |
