| Bad Ems to Olympia Heights (Florida) | 4,787.20 mi (7,704.25 km) |
| Bad Ems to Omaha (Nebraska) | 4,617.06 mi (7,430.44 km) |
| Bad Ems to On Top of the World Designated Place (Florida) | 4,698.85 mi (7,562.07 km) |
| Bad Ems to Onalaska (Wisconsin) | 4,315.53 mi (6,945.18 km) |
| Bad Ems to Oneida (New York) | 3,771.05 mi (6,068.92 km) |
| Bad Ems to Oneonta (New York) | 3,774.60 mi (6,074.63 km) |
| Bad Ems to Ontario (California) | 5,721.60 mi (9,208.02 km) |
| Bad Ems to Ontario (Oregon) | 5,120.27 mi (8,240.28 km) |
| Bad Ems to Opa-locka (Florida) | 4,774.77 mi (7,684.25 km) |
| Bad Ems to Opelika (Alabama) | 4,647.39 mi (7,479.25 km) |
| Bad Ems to Opelousas (Louisiana) | 5,022.56 mi (8,083.04 km) |
| Bad Ems to Orange (California) | 5,741.93 mi (9,240.74 km) |
| Bad Ems to Orange (Texas) | 5,109.16 mi (8,222.41 km) |
| Bad Ems to Orange City (Florida) | 4,665.81 mi (7,508.90 km) |
| Bad Ems to Orangeburg (South Carolina) | 4,423.49 mi (7,118.92 km) |
