| Hallbergmoos to Oestrich-Winkel | 204.81 mi (329.61 km) |
| Hallbergmoos to Offenburg | 175.31 mi (282.13 km) |
| Hallbergmoos to Oftersheim | 160.75 mi (258.70 km) |
| Hallbergmoos to Ohrdruf | 178.29 mi (286.93 km) |
| Hallbergmoos to Ohringen | 118.68 mi (190.99 km) |
| Hallbergmoos to Olbernhau | 176.17 mi (283.52 km) |
| Hallbergmoos to Olching | 21.95 mi (35.33 km) |
| Hallbergmoos to Oldenburg | 366.47 mi (589.78 km) |
| Hallbergmoos to Oldenburg in Holstein | 413.95 mi (666.18 km) |
| Hallbergmoos to Olfen | 303.57 mi (488.54 km) |
| Hallbergmoos to Olpe | 254.96 mi (410.33 km) |
| Hallbergmoos to Olsberg | 254.17 mi (409.05 km) |
| Hallbergmoos to Oranienburg | 312.35 mi (502.68 km) |
| Hallbergmoos to Ortenberg | 185.02 mi (297.76 km) |
| Hallbergmoos to Oschatz | 213.73 mi (343.97 km) |
