| Torre del Greco to Oberkirch | 618.21 mi (994.92 km) |
| Torre del Greco to Obernburg am Main | 675.27 mi (1,086.75 km) |
| Torre del Greco to Obernkirchen | 831.43 mi (1,338.06 km) |
| Torre del Greco to Oberschleissheim | 534.15 mi (859.64 km) |
| Torre del Greco to Oberstdorf | 501.02 mi (806.31 km) |
| Torre del Greco to Obertraubling | 575.58 mi (926.31 km) |
| Torre del Greco to Obertshausen | 695.20 mi (1,118.82 km) |
| Torre del Greco to Oberursel | 708.58 mi (1,140.34 km) |
| Torre del Greco to Ochsenfurt | 647.43 mi (1,041.93 km) |
| Torre del Greco to Ochsenhausen | 548.97 mi (883.49 km) |
| Torre del Greco to Ochtrup | 859.24 mi (1,382.82 km) |
| Torre del Greco to Odenthal | 788.89 mi (1,269.59 km) |
| Torre del Greco to Oelde | 818.72 mi (1,317.61 km) |
| Torre del Greco to Oelsnitz | 674.04 mi (1,084.77 km) |
| Torre del Greco to Oer-Erkenschwick | 823.30 mi (1,324.97 km) |
