| Three Lakes to Oberkirch | 4,844.75 mi (7,796.86 km) |
| Three Lakes to Obernburg am Main | 4,864.50 mi (7,828.66 km) |
| Three Lakes to Obernkirchen | 4,816.03 mi (7,750.66 km) |
| Three Lakes to Oberschleissheim | 5,002.87 mi (8,051.34 km) |
| Three Lakes to Oberstdorf | 4,964.98 mi (7,990.37 km) |
| Three Lakes to Obertraubling | 5,012.54 mi (8,066.91 km) |
| Three Lakes to Obertshausen | 4,846.87 mi (7,800.29 km) |
| Three Lakes to Oberursel | 4,833.31 mi (7,778.46 km) |
| Three Lakes to Ochsenfurt | 4,907.85 mi (7,898.42 km) |
| Three Lakes to Ochsenhausen | 4,936.05 mi (7,943.80 km) |
| Three Lakes to Ochtrup | 4,738.49 mi (7,625.86 km) |
| Three Lakes to Odenthal | 4,756.17 mi (7,654.32 km) |
| Three Lakes to Oelde | 4,784.57 mi (7,700.03 km) |
| Three Lakes to Oelsnitz | 4,979.84 mi (8,014.28 km) |
| Three Lakes to Oer-Erkenschwick | 4,750.90 mi (7,645.84 km) |
