| Ploermel to Obernburg am Main | 539.97 mi (869.00 km) |
| Ploermel to Obernkirchen | 590.76 mi (950.74 km) |
| Ploermel to Oberschleissheim | 643.95 mi (1,036.33 km) |
| Ploermel to Oberstdorf | 590.24 mi (949.90 km) |
| Ploermel to Obertraubling | 670.24 mi (1,078.64 km) |
| Ploermel to Obertshausen | 529.45 mi (852.06 km) |
| Ploermel to Oberursel | 520.42 mi (837.54 km) |
| Ploermel to Ochsenfurt | 578.93 mi (931.69 km) |
| Ploermel to Ochsenhausen | 570.22 mi (917.68 km) |
| Ploermel to Ochtrup | 517.02 mi (832.07 km) |
| Ploermel to Odenthal | 477.34 mi (768.20 km) |
| Ploermel to Oelde | 540.71 mi (870.19 km) |
| Ploermel to Oelsnitz | 678.67 mi (1,092.22 km) |
| Ploermel to Oer-Erkenschwick | 500.38 mi (805.28 km) |
| Ploermel to Oerlinghausen | 564.56 mi (908.58 km) |
