| Pornichet to Obernburg am Main | 553.73 mi (891.15 km) |
| Pornichet to Obernkirchen | 616.01 mi (991.38 km) |
| Pornichet to Oberschleissheim | 648.62 mi (1,043.85 km) |
| Pornichet to Oberstdorf | 590.30 mi (950.00 km) |
| Pornichet to Obertraubling | 678.32 mi (1,091.65 km) |
| Pornichet to Obertshausen | 544.70 mi (876.60 km) |
| Pornichet to Oberursel | 536.65 mi (863.66 km) |
| Pornichet to Ochsenfurt | 591.08 mi (951.25 km) |
| Pornichet to Ochsenhausen | 573.83 mi (923.50 km) |
| Pornichet to Ochtrup | 544.78 mi (876.74 km) |
| Pornichet to Odenthal | 499.84 mi (804.42 km) |
| Pornichet to Oelde | 565.47 mi (910.04 km) |
| Pornichet to Oelsnitz | 693.33 mi (1,115.80 km) |
| Pornichet to Oer-Erkenschwick | 525.63 mi (845.92 km) |
| Pornichet to Oerlinghausen | 589.18 mi (948.20 km) |
