| Prudhoe to Oberkirch | 613.50 mi (987.33 km) |
| Prudhoe to Obernburg am Main | 581.87 mi (936.43 km) |
| Prudhoe to Obernkirchen | 485.88 mi (781.94 km) |
| Prudhoe to Oberschleissheim | 737.09 mi (1,186.24 km) |
| Prudhoe to Oberstdorf | 738.39 mi (1,188.33 km) |
| Prudhoe to Obertraubling | 724.30 mi (1,165.65 km) |
| Prudhoe to Obertshausen | 561.24 mi (903.23 km) |
| Prudhoe to Oberursel | 546.48 mi (879.47 km) |
| Prudhoe to Ochsenfurt | 621.62 mi (1,000.40 km) |
| Prudhoe to Ochsenhausen | 693.89 mi (1,116.71 km) |
| Prudhoe to Ochtrup | 416.36 mi (670.07 km) |
| Prudhoe to Odenthal | 460.57 mi (741.22 km) |
| Prudhoe to Oelde | 464.59 mi (747.69 km) |
| Prudhoe to Oelsnitz | 664.03 mi (1,068.65 km) |
| Prudhoe to Oer-Erkenschwick | 439.68 mi (707.59 km) |
