| Hohr-Grenzhausen to Oestrich-Winkel | 33.39 mi (53.73 km) |
| Hohr-Grenzhausen to Offenburg | 136.51 mi (219.68 km) |
| Hohr-Grenzhausen to Oftersheim | 84.03 mi (135.24 km) |
| Hohr-Grenzhausen to Ohrdruf | 136.89 mi (220.31 km) |
| Hohr-Grenzhausen to Ohringen | 118.01 mi (189.93 km) |
| Hohr-Grenzhausen to Olbernhau | 249.03 mi (400.78 km) |
| Hohr-Grenzhausen to Olching | 225.35 mi (362.67 km) |
| Hohr-Grenzhausen to Oldenburg | 188.60 mi (303.52 km) |
| Hohr-Grenzhausen to Oldenburg in Holstein | 299.39 mi (481.82 km) |
| Hohr-Grenzhausen to Olfen | 89.43 mi (143.93 km) |
| Hohr-Grenzhausen to Olpe | 40.81 mi (65.68 km) |
| Hohr-Grenzhausen to Olsberg | 72.45 mi (116.60 km) |
| Hohr-Grenzhausen to Oranienburg | 287.54 mi (462.75 km) |
| Hohr-Grenzhausen to Ortenberg | 61.21 mi (98.51 km) |
| Hohr-Grenzhausen to Oschatz | 244.40 mi (393.33 km) |
