| Melres to Oberkirch | 955.67 mi (1,538.00 km) |
| Melres to Obernburg am Main | 1,040.01 mi (1,673.74 km) |
| Melres to Obernkirchen | 1,129.71 mi (1,818.09 km) |
| Melres to Oberschleissheim | 1,095.21 mi (1,762.57 km) |
| Melres to Oberstdorf | 1,019.80 mi (1,641.21 km) |
| Melres to Obertraubling | 1,138.04 mi (1,831.49 km) |
| Melres to Obertshausen | 1,035.85 mi (1,667.04 km) |
| Melres to Oberursel | 1,030.92 mi (1,659.10 km) |
| Melres to Ochsenfurt | 1,070.44 mi (1,722.71 km) |
| Melres to Ochsenhausen | 1,021.04 mi (1,643.20 km) |
| Melres to Ochtrup | 1,063.04 mi (1,710.79 km) |
| Melres to Odenthal | 1,010.04 mi (1,625.50 km) |
| Melres to Oelde | 1,078.85 mi (1,736.25 km) |
| Melres to Oelsnitz | 1,177.43 mi (1,894.89 km) |
| Melres to Oer-Erkenschwick | 1,040.35 mi (1,674.29 km) |
