| Bad Ems to Oswego (Illinois) | 4,318.45 mi (6,949.87 km) |
| Bad Ems to Oswego (New York) | 3,787.56 mi (6,095.49 km) |
| Bad Ems to Otsego (Minnesota) | 4,332.32 mi (6,972.20 km) |
| Bad Ems to Ottawa (Illinois) | 4,352.37 mi (7,004.46 km) |
| Bad Ems to Ottawa (Kansas) | 4,725.30 mi (7,604.64 km) |
| Bad Ems to Ottumwa (Iowa) | 4,500.06 mi (7,242.15 km) |
| Bad Ems to Overland (Missouri) | 4,540.45 mi (7,307.15 km) |
| Bad Ems to Overland Park (Kansas) | 4,689.73 mi (7,547.39 km) |
| Bad Ems to Overlea (Maryland) | 3,970.12 mi (6,389.28 km) |
| Bad Ems to Oviedo (Florida) | 4,675.44 mi (7,524.39 km) |
| Bad Ems to Owasso (Oklahoma) | 4,865.44 mi (7,830.17 km) |
| Bad Ems to Owatonna (Minnesota) | 4,376.65 mi (7,043.53 km) |
| Bad Ems to Owensboro (Kentucky) | 4,463.54 mi (7,183.37 km) |
| Bad Ems to Owings Mills (Maryland) | 3,978.97 mi (6,403.54 km) |
| Bad Ems to Owosso (Michigan) | 4,101.54 mi (6,600.80 km) |
