| Mering to Oestrich-Winkel | 180.57 mi (290.61 km) |
| Mering to Offenburg | 140.76 mi (226.53 km) |
| Mering to Oftersheim | 133.34 mi (214.58 km) |
| Mering to Ohrdruf | 177.62 mi (285.86 km) |
| Mering to Ohringen | 93.66 mi (150.73 km) |
| Mering to Olbernhau | 196.75 mi (316.64 km) |
| Mering to Olching | 15.89 mi (25.58 km) |
| Mering to Oldenburg | 358.33 mi (576.68 km) |
| Mering to Oldenburg in Holstein | 417.17 mi (671.38 km) |
| Mering to Olfen | 287.23 mi (462.26 km) |
| Mering to Olpe | 236.79 mi (381.08 km) |
| Mering to Olsberg | 240.68 mi (387.34 km) |
| Mering to Oranienburg | 325.72 mi (524.19 km) |
| Mering to Ortenberg | 168.72 mi (271.53 km) |
| Mering to Oschatz | 230.24 mi (370.54 km) |
