| Hohr-Grenzhausen to Oakley (California) | 5,597.70 mi (9,008.63 km) |
| Hohr-Grenzhausen to Oakton (Virginia) | 4,019.04 mi (6,468.02 km) |
| Hohr-Grenzhausen to Oakville (Missouri) | 4,546.00 mi (7,316.08 km) |
| Hohr-Grenzhausen to Oatfield (Oregon) | 5,177.06 mi (8,331.68 km) |
| Hohr-Grenzhausen to Ocala (Florida) | 4,685.73 mi (7,540.95 km) |
| Hohr-Grenzhausen to Ocean Acres (New Jersey) | 3,858.46 mi (6,209.60 km) |
| Hohr-Grenzhausen to Ocean City (New Jersey) | 3,892.81 mi (6,264.87 km) |
| Hohr-Grenzhausen to Ocean Pines (Maryland) | 3,955.04 mi (6,365.02 km) |
| Hohr-Grenzhausen to Ocean Pointe (Hawaii) | 7,402.98 mi (11,913.95 km) |
| Hohr-Grenzhausen to Ocean Springs (Mississippi) | 4,893.68 mi (7,875.62 km) |
| Hohr-Grenzhausen to Oceanside (California) | 5,754.42 mi (9,260.85 km) |
| Hohr-Grenzhausen to Oceanside (New York) | 3,792.90 mi (6,104.08 km) |
| Hohr-Grenzhausen to Ocoee (Florida) | 4,690.04 mi (7,547.89 km) |
| Hohr-Grenzhausen to Oconomowoc (Wisconsin) | 4,250.94 mi (6,841.23 km) |
| Hohr-Grenzhausen to Odenton (Maryland) | 3,986.48 mi (6,415.62 km) |
