| Royal Oak to Oberkirch | 4,164.82 mi (6,702.64 km) |
| Royal Oak to Obernburg am Main | 4,157.66 mi (6,691.10 km) |
| Royal Oak to Obernkirchen | 4,069.73 mi (6,549.60 km) |
| Royal Oak to Oberschleissheim | 4,309.56 mi (6,935.57 km) |
| Royal Oak to Oberstdorf | 4,292.25 mi (6,907.71 km) |
| Royal Oak to Obertraubling | 4,304.65 mi (6,927.66 km) |
| Royal Oak to Obertshausen | 4,137.77 mi (6,659.10 km) |
| Royal Oak to Oberursel | 4,123.16 mi (6,635.58 km) |
| Royal Oak to Ochsenfurt | 4,199.61 mi (6,758.62 km) |
| Royal Oak to Ochsenhausen | 4,254.20 mi (6,846.48 km) |
| Royal Oak to Ochtrup | 4,001.28 mi (6,439.43 km) |
| Royal Oak to Odenthal | 4,038.82 mi (6,499.86 km) |
| Royal Oak to Oelde | 4,049.47 mi (6,517.00 km) |
| Royal Oak to Oelsnitz | 4,249.04 mi (6,838.17 km) |
| Royal Oak to Oer-Erkenschwick | 4,022.80 mi (6,474.08 km) |
