| Sylvania to Oberkirch | 4,222.34 mi (6,795.20 km) |
| Sylvania to Obernburg am Main | 4,215.84 mi (6,784.74 km) |
| Sylvania to Obernkirchen | 4,128.77 mi (6,644.61 km) |
| Sylvania to Oberschleissheim | 4,367.54 mi (7,028.87 km) |
| Sylvania to Oberstdorf | 4,349.70 mi (7,000.16 km) |
| Sylvania to Obertraubling | 4,362.97 mi (7,021.52 km) |
| Sylvania to Obertshausen | 4,195.99 mi (6,752.79 km) |
| Sylvania to Oberursel | 4,181.39 mi (6,729.29 km) |
| Sylvania to Ochsenfurt | 4,257.86 mi (6,852.36 km) |
| Sylvania to Ochsenhausen | 4,311.85 mi (6,939.25 km) |
| Sylvania to Ochtrup | 4,060.05 mi (6,534.02 km) |
| Sylvania to Odenthal | 4,097.16 mi (6,593.74 km) |
| Sylvania to Oelde | 4,108.24 mi (6,611.57 km) |
| Sylvania to Oelsnitz | 4,307.85 mi (6,932.82 km) |
| Sylvania to Oer-Erkenschwick | 4,081.38 mi (6,568.35 km) |
